diff --git a/include/code_801B3C0.h b/include/code_801B3C0.h
index 76ad0b429..aff5cacfc 100644
--- a/include/code_801B3C0.h
+++ b/include/code_801B3C0.h
@@ -21,8 +21,8 @@ typedef struct unkStruct_203B230
     MenuInputStructSub unk88;
 } unkStruct_203B230;
 
-bool8 sub_801B3C0(Item *item);
+bool8 InitItemDescriptionWindow(Item *item);
 u32 sub_801B410(void);
-void sub_801B450(void);
+void FreeItemDescriptionWindow(void);
 
 #endif // GUARD_CODE_801B3C0_H
diff --git a/include/constants/dungeon_action.h b/include/constants/dungeon_action.h
index d01f17a83..fcc22457f 100644
--- a/include/constants/dungeon_action.h
+++ b/include/constants/dungeon_action.h
@@ -16,6 +16,7 @@ enum DungeonAction
     ACTION_THROW_ITEM_PLAYER = 0xB,
     ACTION_SHOW_INFO = 0xC,
     ACTION_EAT_BERRY_SEED_DRINK = 0xD,
+    ACTION_UNK10 = 0x10,
     ACTION_USE_TM = 0x12,
     ACTION_TALK_FIELD = 0x13, // Talking to another Pokémon by facing them and interacting.
     ACTION_USE_MOVE_PLAYER = 0x14,
@@ -43,12 +44,15 @@ enum DungeonAction
     ACTION_USE_ORB = 0x31,
     ACTION_REGULAR_ATTACK = 0x32,
     ACTION_UNSET_MOVE = 0x33,
+    ACTION_UNK35 = 0x35,
     ACTION_GIVE_ITEM = 0x36,
     ACTION_TAKE_ITEM = 0x37,
     ACTION_USE_ITEM = 0x38,
     ACTION_SECOND_THOUGHTS = 0x39, // Happens with invalid actions, like attempting to eat a non-consumable item.
+    ACTION_UNK3A = 0x3A,
     ACTION_SET_ITEM = 0x3C,
     ACTION_UNSET_ITEM = 0x3D,
+    ACTION_UNK3E = 0x3E,
     ACTION_PICK_UP_AI = 0x3F,
     ACTION_THROW_ARC_PLAYER = 0x41, // Throwing Gravelerocks and Geo Pebbles.
     NUM_DUNGEON_ACTIONS
diff --git a/include/dungeon_items.h b/include/dungeon_items.h
index 288a1147b..f1bafd243 100644
--- a/include/dungeon_items.h
+++ b/include/dungeon_items.h
@@ -2,9 +2,33 @@
 #define GUARD_DUNGEON_ITEMS_H
 
 #include "structs/dungeon_entity.h"
+#include "structs/str_position.h"
+#include "structs/str_items.h"
 
+void sub_8045BF8(u8 *buffer, Item *item);
+void sub_8045C08(u8 *buffer, Item *item);
+void sub_8045C18(u8 *buffer, Item *item);
+#define FORCE_STICKY_RANDOM 0
+#define FORCE_STICKY_ALWAYS 1
+#define FORCE_STICKY_NEVER 2
+void CreateItemWithStickyChance(Item *item, u8 itemID, u32 forceSticky);
+void CreateFloorItems(void);
+void PickUpItemFromPos(struct DungeonPos *pos, bool8 printMsg);
+bool8 sub_80460F8(DungeonPos *pos, Item *item, bool8 a2);
+bool8 sub_80461C8(DungeonPos *pos, bool8 a2);
+bool8 sub_80462AC(Entity * entity, u8 hallucinating, u8 a2, u8 a3, u8 a4);
+const u8 *sub_80464AC(Item *item);
+void sub_80464C8(Entity *entity, DungeonPos *pos, Item *item);
+void sub_804652C(Entity *entity1, Entity *entity2, Item *item, bool8 a3, DungeonPos *pos);
+void sub_8046860(Entity *entity, DungeonPos *pos, Item *item, s32 a4);
+void sub_804687C(Entity *entity, DungeonPos *pos1, DungeonPos *pos2, Item *item, s32 count);
 bool8 HasHeldItem(Entity *pokemon, u8 id);
-void sub_8046CE4(Item *item, s32 param_2);
 void sub_8046D20(void);
+bool8 sub_8046F00(Item *item);
+void ClearAllItemsWithFlag(s32 itemFlag);
+void AllItemsToPlainSeed(void);
+bool8 PlayerHasItemWithFlag(s32 itemFlag);
+void CleanUpInventoryItems(void);
+void ClearUnpaidFlagFromAllItems(void);
 
 #endif
diff --git a/include/dungeon_menu_items.h b/include/dungeon_menu_items.h
index ee8424def..f5dbe9975 100644
--- a/include/dungeon_menu_items.h
+++ b/include/dungeon_menu_items.h
@@ -6,6 +6,6 @@
 
 bool8 sub_805FD3C(struct UnkMenuBitsStruct *a0);
 bool8 ShowDungeonItemsMenu(Entity * a0, struct UnkMenuBitsStruct *a1);
-void sub_8060D24(UNUSED ActionContainer *a0);
+void DungeonShowItemDescription(UNUSED ActionContainer *a0);
 
 #endif
diff --git a/include/items.h b/include/items.h
index 933aa5920..67c11f8c2 100644
--- a/include/items.h
+++ b/include/items.h
@@ -14,7 +14,7 @@ TeamInventory *GetMoneyItemsInfo(void);
 void InitializeMoneyItems(void);
 s32 GetNumberOfFilledInventorySlots(void);
 bool8 IsThrowableItem(u8 id);
-void xxx_init_itemslot_8090A8C(Item *param_1,u8 id,u8 param_3);
+void ItemIdToSlot(Item *param_1,u8 id,u8 param_3);
 void xxx_init_helditem_8090B08(BulkItem *param_1,u8 id);
 void HeldItemToSlot(Item *param_1, BulkItem *param_2);
 void SlotToHeldItem(BulkItem *held, Item *slot);
diff --git a/include/structs/str_dungeon.h b/include/structs/str_dungeon.h
index 845800a51..fe016e4ca 100644
--- a/include/structs/str_dungeon.h
+++ b/include/structs/str_dungeon.h
@@ -127,7 +127,7 @@ typedef struct FloorProperties
     u8 kecleonShopChance; // Percentage chance 0-100%
     u8 monsterHouseChance; // Percentage chance 0-100%
     u8 mazeRoomChance; // Percentage chance 0-100%
-    u8 unkA;
+    u8 itemStickyChance; // Percentage chance 0-100%
     bool8 allowDeadEnds;
     u8 secondaryStructuresBudget; // Maximum number of secondary structures that can be generated
     u8 roomFlags; // See ROOM_FLAG_
@@ -146,11 +146,19 @@ typedef struct FloorProperties
     u8 unk1A;
 } FloorProperties;
 
-typedef struct UnkDungeonGlobal_unk1C590
+enum {
+    ITEM_SPAWN_NORMAL,
+    ITEM_SPAWN_IN_SHOP,
+    ITEM_SPAWN_IN_MONSTER_HOUSE,
+    ITEM_SPAWN_WALL, // ?
+    ITEM_SPAWN_TYPES_COUNT
+};
+
+typedef struct ItemSpawns
 {
     s16 categoryValues[NUM_ITEM_CATEGORIES];
     s16 itemValues[NUMBER_OF_ITEM_IDS];
-} UnkDungeonGlobal_unk1C590;
+} ItemSpawns;
 
 typedef struct UnkDungeonGlobal_unk1CD98
 {
@@ -252,7 +260,7 @@ typedef struct unkDungeon644
     /* 0x14 */ bool8 canRecruit;
     /* 0x15 */ u8 unk15;
     /* 0x16 */ u8 unk16;
-    /* 0x17 */ u8 unk17;
+    /* 0x17 */ bool8 hasInventory;
     /* 0x18 */ u8 unk18;
     /* 0x19 */ u8 unk19;
     /* 0x1A */ u8 fill1A[2];
@@ -480,8 +488,8 @@ typedef struct Dungeon
     /* 0x1BDD4 */ struct UnkStructDungeon1BDD4 unk1BDD4;
     /* 0x1BE14 */ struct MessageLogString messageLogStrings[MESSAGE_LOG_STRINGS_COUNT];
     /* 0x1C570 */ DungeonLocation unk1C570;
-    /* 0x1C574 */ FloorProperties unk1C574;
-    /* 0x1C590 */ UnkDungeonGlobal_unk1C590 unk1C590[4];
+    /* 0x1C574 */ FloorProperties floorProperties;
+    /* 0x1C590 */ ItemSpawns itemSpawns[ITEM_SPAWN_TYPES_COUNT];
     u16 unk1CD70[20];
     UnkDungeonGlobal_unk1CD98 unk1CD98[32];
     UnkDungeonGlobal_unk1CE98_sub unk1CE98; // TODO: not sure how large this is
diff --git a/src/code_801B3C0.c b/src/code_801B3C0.c
index 1ea71f135..e803f8184 100644
--- a/src/code_801B3C0.c
+++ b/src/code_801B3C0.c
@@ -19,7 +19,7 @@ static void sub_801B480(void);
 static void sub_801B51C(void);
 static void sub_801B590(void);
 
-bool8 sub_801B3C0(Item *item)
+bool8 InitItemDescriptionWindow(Item *item)
 {
     ResetSprites(TRUE);
     sUnknown_203B230 = MemoryAlloc(sizeof(unkStruct_203B230),8);
@@ -52,7 +52,7 @@ u32 sub_801B410(void)
     return 0;
 }
 
-void sub_801B450(void)
+void FreeItemDescriptionWindow(void)
 {
     if (sUnknown_203B230 != NULL) {
         MemoryFree(sUnknown_203B230);
diff --git a/src/code_801B60C.c b/src/code_801B60C.c
index f44ba2fa0..ae88c5fd0 100644
--- a/src/code_801B60C.c
+++ b/src/code_801B60C.c
@@ -244,7 +244,7 @@ store:
             sub_8012D60(&sUnknown_203B234->unk28, sUnknown_203B234->unkCC, 0, 0, sUnknown_203B234->menuAction, 2);
             break;
         case 11:
-            sub_801B3C0(&sUnknown_203B234->unk20);
+            InitItemDescriptionWindow(&sUnknown_203B234->unk20);
             break;
         case 12:
             sub_801A9E0();
@@ -470,7 +470,7 @@ static void sub_801BEAC(void)
     switch (sub_801B410()) {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             sub_801B748(9);
         case 0:
         case 1:
diff --git a/src/code_80227B8.c b/src/code_80227B8.c
index 3bd8dd8f0..6f584aeb3 100644
--- a/src/code_80227B8.c
+++ b/src/code_80227B8.c
@@ -159,7 +159,7 @@ static void sub_8022A10(void)
             sub_8012D60(&sUnknown_203B294->unkA4, sUnknown_80DC584, 0, 0, 3, 1);
             break;
         case 4:
-            sub_801B3C0(&sUnknown_203B294->item);
+            InitItemDescriptionWindow(&sUnknown_203B294->item);
             break;
         case 5:
             CreateDialogueBoxAndPortrait(sDoesNotAppearHungry, 0, 0, 0x301);
@@ -446,7 +446,7 @@ static void sub_80230E8(void)
     switch (sub_801B410()) {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             sub_8022924(1);
         case 1:
         case 0:
diff --git a/src/code_803D110.c b/src/code_803D110.c
index 95e2d54d0..762afb0d9 100644
--- a/src/code_803D110.c
+++ b/src/code_803D110.c
@@ -93,7 +93,7 @@ void sub_803D4D0(void)
     gDungeon->unk1CEC8 = GetDungeonFloorCount(gDungeon->unk644.dungeonLocation.id);
     gDungeon->unk14 = sub_80902C8(gDungeon->unk644.dungeonLocation.id);
 
-    gDungeon->unk1C574 = ((struct UnkDataFileStruct *)(file->data))->unk4[strPtr->unk0];
+    gDungeon->floorProperties = ((struct UnkDataFileStruct *)(file->data))->unk4[strPtr->unk0];
 
     for (i = 0; i < 20; i++) {
         gDungeon->unk1CD70[i] = ((struct UnkDataFileStruct *)(file->data))->unk10[strPtr->unk4][i];
@@ -127,12 +127,12 @@ void sub_803D4D0(void)
 
         arrId = 0;
         for (j = 0; j < NUM_ITEM_CATEGORIES; j++) {
-            gDungeon->unk1C590[i].categoryValues[arrId] = spArray[arrId];
+            gDungeon->itemSpawns[i].categoryValues[arrId] = spArray[arrId];
             arrId++;
         }
 
         for (j = 0; j < NUMBER_OF_ITEM_IDS; j++) {
-            gDungeon->unk1C590[i].itemValues[j] = spArray[arrId];
+            gDungeon->itemSpawns[i].itemValues[j] = spArray[arrId];
             arrId++;
         }
     }
@@ -152,28 +152,28 @@ u8 sub_803D6FC(void)
     return 16;
 }
 
-u8 sub_803D73C(s32 a0)
+u8 GetRandomFloorItem(s32 spawnType)
 {
     s32 i;
     s32 rand = DungeonRandInt(10000);
     u8 category = NUM_ITEM_CATEGORIES;
     for (i = 0; i < NUM_ITEM_CATEGORIES; i++) {
-        if (gDungeon->unk1C590[a0].categoryValues[i] != 0 && gDungeon->unk1C590[a0].categoryValues[i] >= rand) {
+        if (gDungeon->itemSpawns[spawnType].categoryValues[i] != 0 && gDungeon->itemSpawns[spawnType].categoryValues[i] >= rand) {
             category = i;
             break;
         }
     }
     if (category == NUM_ITEM_CATEGORIES)
-        return 105;
+        return ITEM_POKE;
 
     rand = DungeonRandInt(10000);
     for (i = 0; i < NUMBER_OF_ITEM_IDS; i++) {
-        if (gDungeon->unk1C590[a0].itemValues[i] != 0 && GetItemCategory(i) == category && gDungeon->unk1C590[a0].itemValues[i] >= rand) {
+        if (gDungeon->itemSpawns[spawnType].itemValues[i] != 0 && GetItemCategory(i) == category && gDungeon->itemSpawns[spawnType].itemValues[i] >= rand) {
             return i;
         }
     }
 
-    return 105;
+    return ITEM_POKE;
 }
 
 s32 sub_803D808(UnkDungeonGlobal_unk1CD98 *strPtr, s32 id)
diff --git a/src/code_803E724.c b/src/code_803E724.c
index 8807f6e81..64a70a270 100644
--- a/src/code_803E724.c
+++ b/src/code_803E724.c
@@ -694,7 +694,7 @@ void sub_803F27C(bool8 a0)
 
     gUnknown_202EDFC = 0xFFFF;
     if (!a0) {
-        strPtr->visibilityRange = gDungeon->unk1C574.unk16 & 3;
+        strPtr->visibilityRange = gDungeon->floorProperties.unk16 & 3;
         if (strPtr->visibilityRange == 0) {
             strPtr->unk1820C = 1;
         }
diff --git a/src/code_8042B34.c b/src/code_8042B34.c
index f72c581b4..b946e8a4b 100644
--- a/src/code_8042B34.c
+++ b/src/code_8042B34.c
@@ -41,6 +41,7 @@
 #include "dungeon_serializer.h"
 #include "dungeon_config.h"
 #include "dungeon_map.h"
+#include "dungeon_items.h"
 
 extern void sub_800EE5C(s32);
 extern void sub_800EF64(void);
@@ -263,10 +264,8 @@ extern void sub_803E250(void);
 extern void sub_803E830(void);
 extern void sub_803E214(void);
 extern void nullsub_56(void);
-extern void sub_8047104(void);
 extern void sub_8068F28(void);
 extern void sub_806C1D8(void);
-extern void sub_804700C(void);
 extern void IncrementThievingSuccesses(void);
 extern void sub_803E13C(void);
 extern void sub_80841EC(void);
@@ -313,7 +312,6 @@ extern void sub_806B168(void);
 extern void sub_806B6C4(void);
 extern void sub_806A338(void);
 extern void sub_8051E3C(void);
-extern void sub_8045CB0(void);
 extern void sub_807FA18(void);
 extern void sub_806A974(void);
 extern void sub_806CF60(void);
@@ -327,7 +325,6 @@ extern void sub_803EAF0(u32, u32);
 extern void sub_806A914(bool8 a0, bool8 a1, bool8 showRunAwayEffect);
 extern void sub_803F4A0(Entity *a0);
 extern void sub_8083AB0(s16 param_0, Entity * target, Entity * entity);
-extern void sub_8046F84(s32 itemFlag);
 extern bool8 sub_8083C50(void);
 extern void sub_8068FE0(Entity *, u32, Entity *r2);
 extern void ResetMonEntityData(EntityInfo *, u32);
@@ -405,7 +402,7 @@ void RunDungeon(UnkStruct_RunDungeon *r8)
     gDungeon->unk644.unk16 = r8->unkC;
     gDungeon->unk644.canRecruit = r8->unkA;
     gDungeon->unk644.unk15 = r8->unkB;
-    gDungeon->unk644.unk17 = r8->unkD;
+    gDungeon->unk644.hasInventory = r8->unkD;
     gDungeon->unk644.unk19 = r8->unkE;
     StopDungeonBGM();
     sub_803D4AC();
@@ -562,9 +559,9 @@ void RunDungeon(UnkStruct_RunDungeon *r8)
             gDungeon->unk644.unk40 = 99;
             gDungeon->unk644.unk42 = 99;
             gDungeon->weather.weather = 0;
-            gDungeon->tileset = gDungeon->unk1C574.unk2;
-            gDungeon->unk3A10 = gDungeon->unk1C574.unk3;
-            gDungeon->fixedRoomNumber = gDungeon->unk1C574.unk12;
+            gDungeon->tileset = gDungeon->floorProperties.unk2;
+            gDungeon->unk3A10 = gDungeon->floorProperties.unk3;
+            gDungeon->fixedRoomNumber = gDungeon->floorProperties.unk12;
             sub_807E5E4(0);
             sub_80842F0();
         }
@@ -618,7 +615,7 @@ void RunDungeon(UnkStruct_RunDungeon *r8)
         gDungeon->unk17B40 = 0;
         if (!r6) {
             sub_807FA18();
-            sub_8045CB0();
+            CreateFloorItems();
             gDungeon->unk644.unk50 = gDungeon->unk644.unk48;
             gDungeon->unk644.unk4C = 0;
             sub_8051E3C();
@@ -793,13 +790,13 @@ void RunDungeon(UnkStruct_RunDungeon *r8)
                 SaveDungeonState(gSerializedData_203B41C, 0x4800);
             }
             else {
-                sub_8046F84(ITEM_FLAG_IN_SHOP);
+                ClearAllItemsWithFlag(ITEM_FLAG_IN_SHOP);
             }
             sub_806C1D8();
 
             if (gDungeon->unk644.unk10 == 1) {
                 if (gDungeon->unk644.unk2A != 0) {
-                    sub_804700C();
+                    AllItemsToPlainSeed();
                 }
                 check = TRUE;
             }
@@ -915,7 +912,7 @@ void RunDungeon(UnkStruct_RunDungeon *r8)
     nullsub_56();
     CloseDungeonMapFile();
     if (r8->unk7C == 1 || r8->unk7C == 4 || r8->unk7C == 2) {
-        sub_8047104();
+        CleanUpInventoryItems();
     }
     if (r8->unk7C == 1 || r8->unk7C == -2 || r8->unk7C == 4 || r8->unk7C == -1 || r8->unk7C == 2) {
         if (r8->unk7C == 1 || r8->unk7C == 4 || r8->unk7C == 2) {
@@ -1023,7 +1020,7 @@ void sub_8043D60(void)
         }
     }
 
-    sub_8046F84(ITEM_FLAG_IN_SHOP);
+    ClearAllItemsWithFlag(ITEM_FLAG_IN_SHOP);
 }
 
 bool8 sub_8043ED0(bool8 a0)
diff --git a/src/code_8045A00.c b/src/code_8045A00.c
index cc9756af5..a4ffb2d67 100644
--- a/src/code_8045A00.c
+++ b/src/code_8045A00.c
@@ -12,14 +12,10 @@
 #include "dungeon_ai_targeting.h"
 #include "string_format.h"
 #include "items.h"
+#include "trap.h"
 #include "status_checks_1.h"
 #include "structs/map.h"
 #include "structs/str_dungeon.h"
-#include "trap.h"
-#include "math.h"
-#include "code_80450F8.h"
-#include "dungeon_util.h"
-#include "structs/str_item_text.h"
 
 void sub_8045BF8(u8 *, Item *);
 
@@ -87,8 +83,3 @@ void SubstitutePlaceholderStringTags(u8 *buffer, Entity *entity, u32 param_3)
         break;
   }
 }
-
-// FILE SPLIT HERE
-
-
-//
diff --git a/src/code_8066D04.c b/src/code_8066D04.c
index 3b60aa4e2..083ff0bea 100644
--- a/src/code_8066D04.c
+++ b/src/code_8066D04.c
@@ -92,19 +92,15 @@ extern Item *sub_8044D90(Entity *, s32, u32);
 void sub_8045BF8(u8 *, Item *);
 u8 sub_8048D50();
 void SetActionUnusableInDungeonSubMenu(u16 param_1);
-u8 * sub_80464AC();
 void AddActionToDungeonSubMenu(u16 param_1, u8 param_2);
 void sub_8044DF0();
 void sub_8042208(Entity *pokemon, u8 r1);
 void sub_803E708();
 void sub_80479B8();
-u8 sub_80460F8(DungeonPos *, Item *, u32);
 extern void sub_807AB38(Entity *, u32);
 extern Entity * sub_8044DA4(Entity *param_1,int param_2);
 extern void sub_806A6E8(Entity *);
 extern void sub_8044DF0(Entity *, u32, u32);
-extern void sub_8045DB4(DungeonPos *, u32);
-extern bool8 sub_80461C8(DungeonPos *, u32);
 extern bool32 sub_8055A00(Entity *attacker, s32 firstMoveId, s32 var_34, s32 itemId, s32 arg_0);
 extern bool8 sub_8044B28(void);
 Entity *sub_806773C(Entity *entity);
@@ -119,7 +115,7 @@ extern Entity * sub_80696A8(Entity *target);
 void HandlePickUpPlayerAction(Entity *entity)
 {
   GetEntInfo(entity)->action.actionParameters[0].actionUseIndex = 1;
-  sub_8045DB4(&entity->pos,0);
+  PickUpItemFromPos(&entity->pos,0);
 }
 
 void HandleSetItemAction(Entity *param_1, bool8 param_2)
diff --git a/src/code_8069E0C.c b/src/code_8069E0C.c
index d24ddd72a..adf13948b 100644
--- a/src/code_8069E0C.c
+++ b/src/code_8069E0C.c
@@ -66,7 +66,7 @@ extern DungeonPos gUnknown_202EE0C;
 extern void sub_803F4A0(Entity *a0);
 extern bool8 sub_80860A8(u8 id);
 extern u8 gUnknown_202F32C;
-extern u8 sub_803D73C(s32 a0);
+extern u8 GetRandomFloorItem(s32 a0);
 extern void DeletePokemonDungeonSprite(s32 id);
 extern void sub_80429E8(Entity *r0);
 extern s32 sub_803DA20(s32 param_1);
@@ -1407,9 +1407,9 @@ bool8 sub_806B8CC(s16 _species, s32 x, s32 y, PokemonStruct2 *monPtr, Entity **a
         && (entityInfo->abilities[0] == ABILITY_PICKUP || entityInfo->abilities[1] == ABILITY_PICKUP)
         && !ItemExists(&entityInfo->heldItem))
     {
-        u32 pickUpItem = sub_803D73C(0);
+        u32 pickUpItem = GetRandomFloorItem(0);
         if (pickUpItem != ITEM_POKE) {
-            xxx_init_itemslot_8090A8C(&entityInfo->heldItem, pickUpItem, 0);
+            ItemIdToSlot(&entityInfo->heldItem, pickUpItem, 0);
             entityInfo->unkF3 = TRUE;
         }
     }
diff --git a/src/code_806CD90.c b/src/code_806CD90.c
index 0810e0ac0..34f4bc571 100644
--- a/src/code_806CD90.c
+++ b/src/code_806CD90.c
@@ -282,7 +282,6 @@ extern void sub_806A390(Entity *r0);
 extern void sub_806F63C(Entity *r0);
 extern void sub_8078084(Entity * pokemon);
 extern void sub_800DBBC(void);
-extern void sub_8045C28(Item *Item, u8 itemID, u32 param_3);
 extern void sub_80464C8(Entity *, DungeonPos *, Item *);
 extern bool8 DoEnemiesEvolveWhenKOed(u8 dungeon);
 extern bool8 sub_806FA5C(Entity *, Entity *, struct unkStruct_8069D4C *);
@@ -869,7 +868,7 @@ static bool8 HandleDealingDamageInternal(Entity *attacker, Entity *target, struc
 
         if (reviverSeed != NULL) {
             sub_8042148(target);
-            sub_8045C28(reviverSeed, ITEM_PLAIN_SEED, 2);
+            CreateItemWithStickyChance(reviverSeed, ITEM_PLAIN_SEED, FORCE_STICKY_NEVER);
             target->unk22 = 0;
             targetData->HP = targetData->maxHPStat;
             targetData->unk158 = 0;
diff --git a/src/code_8073CF0.c b/src/code_8073CF0.c
index fa2eb2d7d..d2e6eb8a3 100644
--- a/src/code_8073CF0.c
+++ b/src/code_8073CF0.c
@@ -42,7 +42,6 @@ extern void sub_8067110(Entity *);
 extern void sub_80671A0(Entity *);
 extern void sub_8073D14(Entity *);
 extern void sub_8045BF8(u8 *, Item *);
-extern bool8 sub_80461C8(DungeonPos *, u32);
 extern void sub_805229C(void);
 extern void sub_807E8F0(Entity *);
 extern void sub_80444F4(Entity *pokemon);
@@ -156,7 +155,7 @@ void sub_8073D14(Entity *entity)
         Item *carriedItems[INVENTORY_SIZE + 1]; // plus held
         s32 newQuantity;
 
-        if (gDungeon->unk644.unk17 && !_entityInfo->isNotTeamMember) {
+        if (gDungeon->unk644.hasInventory && !_entityInfo->isNotTeamMember) {
             for (i = 0; i < INVENTORY_SIZE; i++) {
                 carriedItems[i] = &gTeamInventoryRef->teamItems[i];
                 inventoryIds[i] = i;
diff --git a/src/debug_menu2.c b/src/debug_menu2.c
index af32641b8..3a2fe7eff 100644
--- a/src/debug_menu2.c
+++ b/src/debug_menu2.c
@@ -128,8 +128,8 @@ static void sub_803A5A0(void)
             sub_803A690();
             break;
         case 4:
-            xxx_init_itemslot_8090A8C(&item, sUnknown_203B3F0->id, 0);
-            sub_801B3C0(&item);
+            ItemIdToSlot(&item, sUnknown_203B3F0->id, 0);
+            InitItemDescriptionWindow(&item);
             break;
         case 5:
             break;
@@ -239,7 +239,7 @@ static void sub_803A86C(void)
             break;
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             sub_803A504(1);
             break;
     }
diff --git a/src/dungeon_cutscenes.c b/src/dungeon_cutscenes.c
index 6b41e2580..6eba3934a 100644
--- a/src/dungeon_cutscenes.c
+++ b/src/dungeon_cutscenes.c
@@ -388,10 +388,7 @@ extern u32 sub_8085EC8(u32, u32, u32, DungeonPos *, u32);
 extern void sub_807EAA0(u32, u32);
 extern void sub_8072008(Entity *, Entity *, s16, u32, u32);
 extern void sub_8085374(void);
-extern void sub_8045C28(Item *, u8 , u8 *);
-extern void sub_8046860(Entity *, DungeonPos *, Item *, u32);
-extern u32 sub_803D73C(u32);
-extern void sub_80460F8(DungeonPos *, Item *, u8);
+extern u32 GetRandomFloorItem(u32);
 extern u8 sub_8044B28(void);
 extern bool8 sub_8085B80(struct_8085B80 *);
 
@@ -3548,7 +3545,7 @@ void sub_808AE54(u8 param_1,u8 param_2,DungeonPos *param_3)
   if (!sub_8098100(0x22) && (param_2 == 0x2E) && (param_1 == 0x17)) {
     sub_808B1CC(ITEM_NOTHING);
     if (!sub_8098100(0x1d)) {
-      xxx_init_itemslot_8090A8C(&item,ITEM_ROCK_PART,0);
+      ItemIdToSlot(&item,ITEM_ROCK_PART,0);
       sub_80464C8(GetLeader(),param_3,&item);
       DungeonStartNewBGM(MUS_IN_THE_DEPTHS_OF_THE_PIT);
       // Something fell from Regirock's body
@@ -3571,7 +3568,7 @@ void sub_808AEC8(u8 param_1,u8 param_2,DungeonPos *param_3)
   if (!sub_8098100(0x22) && (param_2 == 0x2F) && (param_1 == 0x18)) {
     sub_808B1CC(ITEM_NOTHING);
     if (!sub_8098100(0x1d)) {
-      xxx_init_itemslot_8090A8C(&item,ITEM_ICE_PART,0);
+      ItemIdToSlot(&item,ITEM_ICE_PART,0);
       sub_80464C8(GetLeader(),param_3,&item);
       DungeonStartNewBGM(MUS_IN_THE_DEPTHS_OF_THE_PIT);
       // Something fell from Regice's body
@@ -3593,7 +3590,7 @@ void sub_808AF3C(u8 param_1,u8 param_2,DungeonPos *param_3)
   if (!sub_8098100(0x22) && (param_2 == 0x30) && (param_1 == 0x19)) {
     sub_808B1CC(ITEM_NOTHING);
     if (!sub_8098100(0x1d)) {
-      xxx_init_itemslot_8090A8C(&item,ITEM_STEEL_PART,0);
+      ItemIdToSlot(&item,ITEM_STEEL_PART,0);
       sub_80464C8(GetLeader(),param_3, &item);
       DungeonStartNewBGM(MUS_IN_THE_DEPTHS_OF_THE_PIT);
       // Something fell from Registeel's body
@@ -3716,7 +3713,7 @@ void sub_808B1CC(u8 itemID)
     tile->terrainType = tile->terrainType | TERRAIN_TYPE_STAIRS;
     if (((itemID != ITEM_NOTHING) && (sub_80860A8(itemID) == 0)) &&
         (sub_80860A8(ITEM_MUSIC_BOX) == 0)) {
-        xxx_init_itemslot_8090A8C(&item,itemID,0);
+        ItemIdToSlot(&item,itemID,0);
         pos.y--;
         sub_80460F8(&pos,&item,1);
     }
@@ -3925,7 +3922,7 @@ void JirachiWish(void)
       {
         for(index = 0; index < 9; index++)
         {
-          sub_8045C28(&moneyItems[index], ITEM_POKE, 0);
+          CreateItemWithStickyChance(&moneyItems[index], ITEM_POKE, 0);
         }
         pos.x = (jirachiEntity->pos.x + DungeonRandInt(3) - 1);
         pos.y = (jirachiEntity->pos.y + DungeonRandInt(3) + -1);
@@ -3950,7 +3947,7 @@ void JirachiWish(void)
       {
         for(index = 0; index < 9; index++)
         {
-          sub_8045C28(&items[index], sub_803D73C(0),0);
+          CreateItemWithStickyChance(&items[index], GetRandomFloorItem(0),0);
         }
         pos.x = (jirachiEntity->pos.x + DungeonRandInt(3) - 1);
         pos.y = (jirachiEntity->pos.y + DungeonRandInt(3) + -1);
@@ -4006,7 +4003,7 @@ void JirachiWish(void)
 
           for(index = 0; index < 4; index++)
           {
-            sub_8045C28(&strengthItems[index],gUnknown_81074FC[DungeonRandInt(8)],0);
+            CreateItemWithStickyChance(&strengthItems[index],gUnknown_81074FC[DungeonRandInt(8)],0);
           }
 
           pos.x = (jirachiEntity->pos.x + DungeonRandInt(3) - 1);
diff --git a/src/dungeon_generation.c b/src/dungeon_generation.c
index bddd4608d..02d76ddcb 100644
--- a/src/dungeon_generation.c
+++ b/src/dungeon_generation.c
@@ -171,7 +171,7 @@ void GenerateFloor(void)
     s32 x, y;
     s32 spawnAttempts;
     bool8 secondaryGen = FALSE;
-    FloorProperties *floorProps = &gDungeon->unk1C574;
+    FloorProperties *floorProps = &gDungeon->floorProperties;
 
     gDungeon->unk13568 = OpenFileAndGetFileDataPtr(gUnknown_80F6DCC, &gDungeonFileArchive);
     sHasKecleonShop = FALSE;
@@ -6094,10 +6094,10 @@ static void sub_805193C(u8 itemId, s32 x, s32 y, s32 quantity, u32 itemFlags)
     DungeonPos pos = {x, y};
 
     if (sub_805210C(itemId)) {
-        xxx_init_itemslot_8090A8C(&item, ITEM_LINK_CABLE, 0);
+        ItemIdToSlot(&item, ITEM_LINK_CABLE, 0);
     }
     else {
-        xxx_init_itemslot_8090A8C(&item, itemId, 0);
+        ItemIdToSlot(&item, itemId, 0);
     }
 
     item.flags |= itemFlags;
diff --git a/src/dungeon_items.c b/src/dungeon_items.c
index 19df08df7..e7892e579 100644
--- a/src/dungeon_items.c
+++ b/src/dungeon_items.c
@@ -59,6 +59,7 @@ extern void sub_804178C(u32);
 extern void sub_804219C(PixelPos *pos);
 extern void DungeonRunFrameActions(u32);
 extern bool8 sub_8045888(Entity *);
+extern u32 GetRandomFloorItem(u32);
 
 static void MusicBoxCreation(void);
 static u8 sub_8046D70(void);
@@ -67,12 +68,8 @@ extern SpriteOAM gUnknown_202EDC0;
 extern u8 gUnknown_203B420[];
 extern u8 gUnknown_203B428[];
 
-void sub_8046734(Entity *entity, DungeonPos *pos);
-void sub_804687C(Entity *entity, DungeonPos *pos1, DungeonPos *pos2, Item *item, s32 a4);
-void sub_804652C(Entity *entity1, Entity *entity2, Item *item, bool8 a3, DungeonPos *pos);
-bool8 sub_80461C8(DungeonPos *, bool8);
-extern u32 sub_803D73C(u32);
-bool8 sub_80460F8(DungeonPos *, Item *, bool8);
+static void sub_8046734(Entity *entity, DungeonPos *pos);
+static void sub_8046CE4(Item *item,s32 param_2);
 
 void sub_8045BF8(u8 *buffer, Item *item)
 {
@@ -89,38 +86,39 @@ void sub_8045C18(u8 *buffer, Item *item)
     sub_8090E14(buffer, item, &gUnknown_80F6990);
 }
 
-void sub_8045C28(Item *item, u8 itemID, u32 param_3)
+void CreateItemWithStickyChance(Item *item, u8 itemID, u32 forceSticky)
 {
     bool8 stickyFlag;
 
-    xxx_init_itemslot_8090A8C(item,itemID,0);
+    ItemIdToSlot(item, itemID, FALSE);
     stickyFlag = FALSE;
     if (IsNotSpecialItem(itemID)) {
-        if (param_3 == 0) {
-            if (DungeonRandInt(100) < gDungeon->unk1C574.unkA)
+        if (forceSticky == FORCE_STICKY_RANDOM) {
+            if (DungeonRandInt(100) < gDungeon->floorProperties.itemStickyChance)
                 stickyFlag = TRUE;
             else
                 stickyFlag = FALSE;
         }
-        else if (param_3 == 1) {
+        else if (forceSticky == FORCE_STICKY_ALWAYS) {
             stickyFlag = TRUE;
         }
     }
+
     if (stickyFlag) {
         item->flags |= ITEM_FLAG_STICKY;
     }
 
     if (GetItemCategory(itemID) == CATEGORY_POKE) {
-        sub_8046CE4(item, gDungeon->unk1C574.unk17 * 40);
+        sub_8046CE4(item, gDungeon->floorProperties.unk17 * 40);
     }
 }
 
-void sub_8045CB0(void)
+void CreateFloorItems(void)
 {
     u8 itemID;
     s32 yCounter, xCounter;
     const Tile *tile;
-    u32 uVar5;
+    s32 spawnType;
     Item item;
     u32 flag;
     s32 x = DungeonRandInt(DUNGEON_MAX_SIZE_X);
@@ -141,7 +139,7 @@ void sub_8045CB0(void)
             }
             tile = GetTile(x,y);
 
-            if (!(tile->terrainType & TERRAIN_TYPE_STAIRS) && (tile->spawnOrVisibilityFlags & 2)) {
+            if (!(tile->terrainType & TERRAIN_TYPE_STAIRS) && (tile->spawnOrVisibilityFlags & SPAWN_FLAG_ITEM)) {
                 DungeonPos pos;
                 bool8 shopFlag = FALSE;
                 pos.x = x;
@@ -149,22 +147,22 @@ void sub_8045CB0(void)
 
                 if (tile->terrainType & TERRAIN_TYPE_SHOP) {
                     shopFlag = TRUE;
-                    uVar5 = 1;
+                    spawnType = ITEM_SPAWN_IN_SHOP;
                 }
                 else
                 {
                     if (GetTerrainType(tile) == TERRAIN_TYPE_WALL) {
-                        uVar5 = 3;
+                        spawnType = ITEM_SPAWN_WALL;
                     }
                     else {
-                        uVar5 = (tile->terrainType & TERRAIN_TYPE_IN_MONSTER_HOUSE) ? 2 : 0;
+                        spawnType = (tile->terrainType & TERRAIN_TYPE_IN_MONSTER_HOUSE) ? ITEM_SPAWN_IN_MONSTER_HOUSE : ITEM_SPAWN_NORMAL;
                     }
                 }
-                itemID = sub_803D73C(uVar5);
+                itemID = GetRandomFloorItem(spawnType);
                 if (!CanSellItem(itemID)) {
-                    shopFlag = 0;
+                    shopFlag = FALSE;
                 }
-                sub_8045C28(&item,itemID,0);
+                CreateItemWithStickyChance(&item,itemID,FORCE_STICKY_RANDOM);
                 if (shopFlag) {
                     item.flags |= flag;
                 }
@@ -174,7 +172,7 @@ void sub_8045CB0(void)
     }
 }
 
-void sub_8045DB4(struct DungeonPos *pos, bool8 printMsg)
+void PickUpItemFromPos(struct DungeonPos *pos, bool8 printMsg)
 {
     Item *tileItem;
     int inventoryIds[INVENTORY_SIZE + 1];
@@ -216,7 +214,7 @@ void sub_8045DB4(struct DungeonPos *pos, bool8 printMsg)
     }
     else {
         s32 i, maxItems;
-        if (gDungeon->unk644.unk17 != 0) {
+        if (gDungeon->unk644.hasInventory) {
             for (i = 0; i < INVENTORY_SIZE; i++) {
                 inventoryItems[i] = &gTeamInventoryRef->teamItems[i];
                 inventoryIds[i] = i;
@@ -393,12 +391,12 @@ bool8 sub_80461C8(DungeonPos *pos, bool8 a2)
     return TRUE;
 }
 
-s32 sub_8046298(Item *item)
+static s32 GetItemIconId(Item *item)
 {
     return gItemParametersData[item->id].icon;
 }
 
-bool8 sub_80462AC(Entity * entity, u8 a1, u8 a2, u8 a3, u8 a4)
+bool8 sub_80462AC(Entity * entity, u8 hallucinating, u8 a2, u8 a3, u8 a4)
 {
     s32 x, y, y2;
     s32 objMode = 0;
@@ -428,12 +426,12 @@ bool8 sub_80462AC(Entity * entity, u8 a1, u8 a2, u8 a3, u8 a4)
         s32 tileNum;
 
         SpriteSetMatrixNum(&gUnknown_202EDC0, 0);
-        if (a1) {
+        if (hallucinating) {
             tileNum = 0x17;
             SpriteSetPalNum(&gUnknown_202EDC0, 10);
         }
         else {
-            tileNum = sub_8046298(entity->axObj.info.item);
+            tileNum = GetItemIconId(entity->axObj.info.item);
             if (a3 != 0xFF && tileNum == 0) {
                 tileNum = gUnknown_203B420[a3];
                 SpriteSetMatrixNum(&gUnknown_202EDC0, gUnknown_203B428[a3] * 8);
@@ -560,7 +558,7 @@ void sub_804652C(Entity *entity1, Entity *entity2, Item *item, bool8 a3, Dungeon
     }
 }
 
-void sub_8046734(Entity *entity, DungeonPos *pos)
+static void sub_8046734(Entity *entity, DungeonPos *pos)
 {
     PixelPos posPixel;
     PixelPos calcPixelPos;
@@ -737,7 +735,7 @@ bool8 HasHeldItem(Entity *pokemon, u8 id)
     return TRUE;
 }
 
-void sub_8046CE4(Item *item,s32 param_2)
+static void sub_8046CE4(Item *item,s32 param_2)
 {
     s32 i;
     s32 rand = DungeonRandInt(100);
@@ -768,7 +766,7 @@ void sub_8046D20(void)
     }
 }
 
-u8 sub_8046D70(void)
+static u8 sub_8046D70(void)
 {
     if (gDungeon->unk644.unk46)
         return 0;
@@ -776,7 +774,7 @@ u8 sub_8046D70(void)
         return 0;
 }
 
-void MusicBoxCreation(void)
+static void MusicBoxCreation(void)
 {
     bool8 musicBoxOnce;
     bool8 createMusicBox;
@@ -816,7 +814,7 @@ void MusicBoxCreation(void)
             ZeroOutItem(&gTeamInventoryRef->teamItems[indexes[2]]);
 
             // init the music box
-            xxx_init_itemslot_8090A8C(&gTeamInventoryRef->teamItems[indexes[0]], ITEM_MUSIC_BOX, 0);
+            ItemIdToSlot(&gTeamInventoryRef->teamItems[indexes[0]], ITEM_MUSIC_BOX, 0);
         }
     } while (musicBoxOnce);
 
@@ -871,7 +869,7 @@ bool8 sub_8046F00(Item *item)
     return TRUE;
 }
 
-void sub_8046F84(s32 itemFlag)
+void ClearAllItemsWithFlag(s32 itemFlag)
 {
     s32 i;
 
@@ -895,7 +893,7 @@ void sub_8046F84(s32 itemFlag)
     }
 }
 
-void sub_804700C(void)
+void AllItemsToPlainSeed(void)
 {
     s32 i;
 
@@ -903,7 +901,7 @@ void sub_804700C(void)
     {
         Item *item = &gTeamInventoryRef->teamItems[i];
         if ((item->flags & ITEM_FLAG_EXISTS)) {
-            xxx_init_itemslot_8090A8C(item, ITEM_PLAIN_SEED, 0);
+            ItemIdToSlot(item, ITEM_PLAIN_SEED, FALSE);
         }
     }
     FillInventoryGaps();
@@ -914,13 +912,13 @@ void sub_804700C(void)
             EntityInfo *entityInfo = GetEntInfo(entity);
             Item *item = &entityInfo->heldItem;
             if ((item->flags & ITEM_FLAG_EXISTS)) {
-                xxx_init_itemslot_8090A8C(item, ITEM_PLAIN_SEED, 0);
+                ItemIdToSlot(item, ITEM_PLAIN_SEED, FALSE);
             }
         }
     }
 }
 
-bool8 sub_8047084(s32 itemFlag)
+bool8 PlayerHasItemWithFlag(s32 itemFlag)
 {
     s32 i;
 
@@ -946,7 +944,7 @@ bool8 sub_8047084(s32 itemFlag)
     return FALSE;
 }
 
-void sub_8047104(void)
+void CleanUpInventoryItems(void)
 {
     s32 i;
 
@@ -965,7 +963,7 @@ void sub_8047104(void)
     FillInventoryGaps();
 }
 
-void sub_8047158(void)
+void ClearUnpaidFlagFromAllItems(void)
 {
     s32 i;
 
diff --git a/src/dungeon_main.c b/src/dungeon_main.c
index 10afb73a9..0bfc8ab63 100644
--- a/src/dungeon_main.c
+++ b/src/dungeon_main.c
@@ -68,16 +68,14 @@ extern void PlayDungeonStartButtonSE(void);
 extern void PlayDungeonCancelSE(void);
 extern void PlayDungeonConfirmationSE(void);
 extern void sub_806A6E8(Entity *);
-extern bool8 sub_8047084(s32 itemFlag);
 extern void HandleTrap(Entity *pokemon, DungeonPos *pos, int param_3, char param_4);
-extern void sub_8045DB4(DungeonPos *, u32);
 bool8 sub_807EF48(void);
 void sub_806A2BC(Entity *a0, u8 a1);
 bool8 sub_80701A4(Entity *a0);
 void sub_803E708(s32 a0, s32 a1);
 void sub_8075680(u32);
 void sub_8094C88(void);
-void sub_8047158(void);
+void ClearUnpaidFlagFromAllItems(void);
 void sub_806A914(u8 a0, u8 a1, u8 a2);
 void SetLeaderActionToNothing(u8 a0);
 u16 GetLeaderActionId(void);
@@ -584,7 +582,7 @@ void DungeonHandlePlayerInput(void)
         }
         else {
             DungeonRunFrameActions(0xF);
-            sub_8047158();
+            ClearUnpaidFlagFromAllItems();
             ShowMainMenu((r6.a0_16 == 0), r6.a0_24);
             ResetRepeatTimers();
             ResetUnusedInputStruct();
@@ -1047,7 +1045,7 @@ void sub_805EE30(void)
         case ENTITY_ITEM: {
             Item *item = GetItemData(tileObject);
             if (!(item->flags & ITEM_FLAG_IN_SHOP)) {
-                sub_8045DB4(&leader->pos, 1);
+                PickUpItemFromPos(&leader->pos, 1);
             }
             else {
                 gDungeon->unk5C0 = 4;
@@ -1111,7 +1109,7 @@ void sub_805F02C(void)
     if (r8->isTeamLeader) {
         DisplayDungeonLoggableMessageTrue(r7, gUnknown_80F9BD8);
     }
-    else if (sub_8047084(ITEM_FLAG_IN_SHOP) || sub_807EF48()) {
+    else if (PlayerHasItemWithFlag(ITEM_FLAG_IN_SHOP) || sub_807EF48()) {
         DisplayDungeonLoggableMessageTrue(r7, gUnknown_80F9C08);
     }
     else if (gDungeon->unk644.unk2A) {
@@ -1204,7 +1202,7 @@ static void ShowMainMenu(bool8 fromBPress, bool8 a1)
 
     while (1) {
         if (r10 < 0) {
-            SetLeaderActionToNothing(1);
+            SetLeaderActionToNothing(TRUE);
             gTeamMenuChosenId = -1;
             PrintOnMainMenu(printAll);
             sub_806A2BC(GetLeader(), 0);
@@ -1242,7 +1240,7 @@ static void ShowMainMenu(bool8 fromBPress, bool8 a1)
         if (chosenOption == MAIN_MENU_ITEMS) {
             u16 action;
 
-            SetLeaderActionToNothing(1);
+            SetLeaderActionToNothing(TRUE);
             var_34.a0_8 = 0;
             var_34.a0_16 = 1;
             var_34.a0_24 = 0;
@@ -1251,75 +1249,75 @@ static void ShowMainMenu(bool8 fromBPress, bool8 a1)
                 r10 = -1;
             }
             if (sub_805FD3C(&var_34) && ShowDungeonItemsMenu(GetLeader(), &var_34)) {
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
             }
             action = GetLeaderActionId();
-            if (action == 12) {
+            if (action == ACTION_SHOW_INFO) {
                 sub_8044D90(GetLeader(), 0, 12)->flags |= ITEM_FLAG_UNPAID;
-                sub_8060D24(GetLeaderActionContainer());
-                SetLeaderActionToNothing(1);
+                DungeonShowItemDescription(GetLeaderActionContainer());
+                SetLeaderActionToNothing(TRUE);
             }
-            else if (action == 53) {
+            else if (action == ACTION_UNK35) {
                 item = sub_8044D90(GetLeader(), 0, 13);
                 if (!sub_8048A68(GetLeader(), item)) {
-                    SetLeaderActionToNothing(1);
+                    SetLeaderActionToNothing(TRUE);
                 }
             }
-            else if (action == 16) {
+            else if (action == ACTION_UNK10) {
                 item = sub_8044D90(GetLeader(), 0, 14);
                 if (!sub_8048950(GetLeader(), item)) {
-                    SetLeaderActionToNothing(1);
+                    SetLeaderActionToNothing(TRUE);
                 }
             }
-            else if (action == 44) {
+            else if (action == ACTION_USE_LINK_BOX) {
                 item = sub_8044D90(GetLeader(), 0, 15);
                 if (!sub_8048B9C(GetLeader(), item)) {
-                    SetLeaderActionToNothing(1);
+                    SetLeaderActionToNothing(TRUE);
                 }
             }
-            else if (action == 60) {
+            else if (action == ACTION_SET_ITEM) {
                 HandleSetItemAction(GetLeader(), TRUE);
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
                 sub_803E708(0x50, 0x4D);
                 sub_8052210(0);
                 break;
             }
-            else if (action == 61) {
+            else if (action == ACTION_UNSET_ITEM) {
                 HandleUnsetItemAction(GetLeader(), TRUE);
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
                 sub_803E708(0x50, 0x4D);
                 sub_8052210(0);
                 break;
             }
 
-            if (GetLeaderActionId() != 0)
+            if (GetLeaderActionId() != ACTION_NOTHING)
                 break;
         }
         else if (chosenOption == MAIN_MENU_TEAM) {
-            SetLeaderActionToNothing(1);
+            SetLeaderActionToNothing(TRUE);
             if (ShowDungeonTeamMenu(GetLeader())) {
                 r10 = -1;
             }
 
             if (GetLeaderActionId() == ACTION_CHECK_SUMMARY) {
                 ShowDungeonSummaryOrIQMenu(GetLeaderActionContainer(), FALSE);
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
             }
             else if (GetLeaderActionId() == ACTION_TALK_MENU) {
                 sub_806752C(GetLeaderActionContainer());
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
             }
             else if (GetLeaderActionId() == 0x34) {
                 sub_8067768(GetLeaderActionContainer());
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
             }
             else if (GetLeaderActionId() == ACTION_CHANGE_TACTICS) {
                 ShowDungeonTacticsMenu(GetLeaderActionContainer());
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
             }
             else if (GetLeaderActionId() == ACTION_VIEW_IQ) {
                 ShowDungeonSummaryOrIQMenu(GetLeaderActionContainer(), TRUE);
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
             }
             else if (GetLeaderActionId() == ACTION_CHECK_MOVES) {
                 s32 i, count;
@@ -1349,7 +1347,7 @@ static void ShowMainMenu(bool8 fromBPress, bool8 a1)
             Entity *currEntity;
 
             currMonId = 0;
-            SetLeaderActionToNothing(1);
+            SetLeaderActionToNothing(TRUE);
             for (i = 0; i < MAX_TEAM_MEMBERS; i++) {
                 Entity *teamMon = gDungeon->teamPokemon[i];
                 if (EntityIsValid(teamMon)) {
@@ -1452,7 +1450,7 @@ static void ShowMainMenu(bool8 fromBPress, bool8 a1)
                 if (GetEntityType(tileObject) == ENTITY_ITEM) {
                     u16 action;
 
-                    SetLeaderActionToNothing(1);
+                    SetLeaderActionToNothing(TRUE);
                     var_30.a0_8 = 0;
                     var_30.a0_16 = 1;
                     var_30.a0_24 = 1;
@@ -1462,45 +1460,45 @@ static void ShowMainMenu(bool8 fromBPress, bool8 a1)
                         ASM_MATCH_TRICK(leader);
                     }
                     if (sub_805FD3C(&var_30) && ShowDungeonItemsMenu(GetLeader(), &var_30)) {
-                        SetLeaderActionToNothing(1);
+                        SetLeaderActionToNothing(TRUE);
                     }
 
                     action = GetLeaderActionId();
                     if (action == 0xC) {
                         sub_8044D90(GetLeader(), 0, 0x10)->flags |= ITEM_FLAG_UNPAID;
-                        sub_8060D24(GetLeaderActionContainer());
-                        SetLeaderActionToNothing(1);
+                        DungeonShowItemDescription(GetLeaderActionContainer());
+                        SetLeaderActionToNothing(TRUE);
                     }
                     else if (action == 0x35) {
                         item = sub_8044D90(GetLeader(), 0, 0x11);
                         if (!sub_8048A68(GetLeader(), item)) {
-                            SetLeaderActionToNothing(1);
+                            SetLeaderActionToNothing(TRUE);
                         }
                     }
                     else if (action == 0x10) {
                         item = sub_8044D90(GetLeader(), 0, 0x12);
                         if (!sub_8048950(GetLeader(), item)) {
-                            SetLeaderActionToNothing(1);
+                            SetLeaderActionToNothing(TRUE);
                         }
                     }
                     else if (action == 0x2C) {
                         item = sub_8044D90(GetLeader(), 0, 0x13);
                         if (!sub_8048B9C(GetLeader(), item)) {
-                            SetLeaderActionToNothing(1);
+                            SetLeaderActionToNothing(TRUE);
                         }
                     }
                     if (GetLeaderActionId() != 0)
                         break;
                 }
                 else if (GetEntityType(tileObject) == ENTITY_TRAP) {
-                    SetLeaderActionToNothing(1);
+                    SetLeaderActionToNothing(TRUE);
                     ShowDungeonTileMenu(GetLeader());
                     if (GetLeaderActionId() != 0)
                         break;
                 }
             }
             else if (tile->terrainType & TERRAIN_TYPE_STAIRS) {
-                SetLeaderActionToNothing(1);
+                SetLeaderActionToNothing(TRUE);
                 ShowDungeonStairsMenu(GetLeader());
                 if (GetLeaderActionId() != 0)
                     break;
diff --git a/src/dungeon_menu_items.c b/src/dungeon_menu_items.c
index e38732557..b5a3242eb 100644
--- a/src/dungeon_menu_items.c
+++ b/src/dungeon_menu_items.c
@@ -36,7 +36,6 @@ extern void PlayDungeonConfirmationSE(void);
 extern void sub_806A2BC(Entity *a0, u8 a1);
 extern void SetLeaderActionToNothing(u8 a0);
 extern void sub_803E708(s32 a0, s32 a1);
-extern void sub_8047158(void);
 extern Item *sub_8044D90(Entity *, s32, u32);
 extern bool8 sub_8070F14(Entity * pokemon, s32 direction);
 bool8 sub_805EC2C(Entity *a0, s32 x, s32 y);
@@ -235,7 +234,7 @@ bool8 ShowDungeonItemsMenu(Entity * a0, struct UnkMenuBitsStruct *a1)
                     s16 arr[10];
 
                     PlaySoundEffect(0x132);
-                    sub_8047158();
+                    ClearUnpaidFlagFromAllItems();
                     ConvertMoneyItemToMoney();
                     sUnknown_202F240 = 0;
                     r3 = sub_8060D64(arr, var_30, var_34, var_28, a0);
@@ -611,10 +610,10 @@ static void sub_8060900(Entity *a0)
     gDungeonSubMenuItemsCount = 0;
     if (sUnknownActionUnk4.actionUseIndex < 144) {
         if (sUnknownActionUnk4.actionUseIndex == 128) {
-            AddActionToDungeonSubMenu(9, item->id);
+            AddActionToDungeonSubMenu(ACTION_PICK_UP_PLAYER, item->id);
             if (GetItemCategory(item->id) != CATEGORY_POKE) {
                 bool32 r2 = 0;
-                if (gDungeon->unk644.unk17 != 0) {
+                if (gDungeon->unk644.hasInventory) {
                     if (gTeamInventoryRef->teamItems[INVENTORY_SIZE - 1].flags & ITEM_FLAG_EXISTS) {
                         r2 = TRUE;
                     }
@@ -628,7 +627,7 @@ static void sub_8060900(Entity *a0)
                 }
             }
         }
-        if (sUnknownActionUnk4.actionUseIndex == 128 && gDungeon->unk644.unk17 != 0) {
+        if (sUnknownActionUnk4.actionUseIndex == 128 && gDungeon->unk644.hasInventory) {
             AddActionToDungeonSubMenu(10, item->id);
         }
         val_sub8044DC8 = sub_8044DC8(item);
@@ -648,10 +647,10 @@ static void sub_8060900(Entity *a0)
             s32 i;
 
             if (ItemSet(item)) {
-                AddActionToDungeonSubMenu(0x3D, item->id);
+                AddActionToDungeonSubMenu(ACTION_UNSET_ITEM, item->id);
             }
             else {
-                AddActionToDungeonSubMenu(0x3C, item->id);
+                AddActionToDungeonSubMenu(ACTION_SET_ITEM, item->id);
             }
 
             for (i = 0; i < INVENTORY_SIZE; i++) {
@@ -659,8 +658,8 @@ static void sub_8060900(Entity *a0)
                     && ItemSet(&gTeamInventoryRef->teamItems[i])
                     && ItemSticky(&gTeamInventoryRef->teamItems[i]))
                 {
-                    SetActionUnusableInDungeonSubMenu(0x3C);
-                    SetActionUnusableInDungeonSubMenu(0x3D);
+                    SetActionUnusableInDungeonSubMenu(ACTION_SET_ITEM);
+                    SetActionUnusableInDungeonSubMenu(ACTION_UNSET_ITEM);
                     break;
                 }
             }
@@ -688,7 +687,7 @@ static void sub_8060900(Entity *a0)
                 }
             }
         }
-        else if (gDungeon->unk644.unk17) {
+        else if (gDungeon->unk644.hasInventory) {
             if (gTeamInventoryRef->teamItems[INVENTORY_SIZE - 1].flags & ITEM_FLAG_EXISTS) {
                 AddActionToDungeonSubMenu(0x3E, item->id);
             }
@@ -705,10 +704,10 @@ static void sub_8060900(Entity *a0)
         if (sUnknownActionUnk4.actionUseIndex <= 20) {
             Entity *tileEntity = GetTile(a0->pos.x, a0->pos.y)->object;
             if (tileEntity == NULL) {
-                AddActionToDungeonSubMenu(8, item->id);
+                AddActionToDungeonSubMenu(ACTION_PLACE_ITEM, item->id);
             }
             else if (GetEntityType(tileEntity) == ENTITY_ITEM) {
-                AddActionToDungeonSubMenu(0x3A, item->id);
+                AddActionToDungeonSubMenu(ACTION_UNK3A, item->id);
             }
         }
 
@@ -749,17 +748,17 @@ static void sub_8060900(Entity *a0)
             if (GetItemCategory(item->id) == CATEGORY_TMS_HMS) r5 = TRUE;
             if (GetItemCategory(item->id) == CATEGORY_ORBS) r5 = TRUE;
 
-            if (gDungeon->unk644.unk17) {
+            if (gDungeon->unk644.hasInventory) {
                 if (r4) {
-                    AddActionToDungeonSubMenu(0x3E, item->id);
+                    AddActionToDungeonSubMenu(ACTION_UNK3E, item->id);
                 }
                 else {
-                    AddActionToDungeonSubMenu(0x37, item->id);
+                    AddActionToDungeonSubMenu(ACTION_TAKE_ITEM, item->id);
                 }
 
                 if (r6) {
-                    SetActionUnusableInDungeonSubMenu(0x37);
-                    SetActionUnusableInDungeonSubMenu(0x3E);
+                    SetActionUnusableInDungeonSubMenu(ACTION_TAKE_ITEM);
+                    SetActionUnusableInDungeonSubMenu(ACTION_UNK3E);
                 }
             }
 
@@ -797,17 +796,17 @@ static void ChosenSubMenuToAction(ActionContainer *a0)
     a0->actionParameters[1].itemPos.y = 0;
 }
 
-void sub_8060D24(UNUSED ActionContainer *a0)
+void DungeonShowItemDescription(UNUSED ActionContainer *a0)
 {
     Item *item = sub_8044D90(GetLeader(), 0, 0xB);
     DungeonShowWindows(NULL, 0);
-    sub_801B3C0(item);
+    InitItemDescriptionWindow(item);
 
     do {
         DungeonRunFrameActions(0x16);
     } while (sub_801B410() == 0);
 
-    sub_801B450();
+    FreeItemDescriptionWindow();
     sub_803EAF0(0, NULL);
 }
 
@@ -816,7 +815,7 @@ static s32 sub_8060D64(s16 *a0, bool8 a1, bool8 a2, bool8 a3, Entity *a4)
     s32 i;
     s32 count = 0;
 
-    if (gDungeon->unk644.unk17 && !a1) {
+    if (gDungeon->unk644.hasInventory && !a1) {
         if (gTeamInventoryRef->teamItems[0].flags & ITEM_FLAG_EXISTS) {
             a0[count++] = 0;
         }
diff --git a/src/dungeon_menu_team.c b/src/dungeon_menu_team.c
index 451b71063..f6ff6d6e5 100644
--- a/src/dungeon_menu_team.c
+++ b/src/dungeon_menu_team.c
@@ -55,9 +55,7 @@ extern void PlayDungeonCancelSE(void);
 extern void PlayDungeonConfirmationSE(void);
 extern void PlayDungeonCursorSE(u8 param_1);
 extern void sub_806A6E8(Entity *);
-extern bool8 sub_8047084(s32 itemFlag);
 extern void HandleTrap(Entity *pokemon, DungeonPos *pos, int param_3, char param_4);
-extern void sub_8045DB4(DungeonPos *, u32);
 bool8 sub_807EF48(void);
 void sub_806A2BC(Entity *a0, u8 a1);
 bool8 sub_805E874(void);
@@ -70,7 +68,6 @@ void ShowDungeonOthersMenu(void);
 void sub_8075680(u32);
 void sub_8094C88(void);
 void sub_8040A84(void);
-void sub_8047158(void);
 void sub_806A914(u8 a0, u8 a1, u8 a2);
 void SetLeaderActionToNothing(u8 a0);
 u16 GetLeaderActionId(void);
@@ -86,7 +83,7 @@ bool8 sub_805EF60(Entity *a0, EntityInfo *a1);
 bool8 sub_8070F80(Entity * pokemon, s32 direction);
 void PrintOnMainMenu(bool8 printAll);
 bool8 ShowDungeonItemsMenu(Entity * a0, struct UnkMenuBitsStruct *a1);
-void sub_8060D24(UNUSED ActionContainer *a0);
+void DungeonShowItemDescription(UNUSED ActionContainer *a0);
 bool8 ShowDungeonTeamMenu(Entity *a0);
 void ActionShowMoveInfo(ActionContainer *a0);
 void ActionToggleMoveUsableForAi(ActionContainer *a0);
@@ -201,7 +198,7 @@ bool8 ShowDungeonTeamMenu(Entity *a0)
         }
     }
 
-    if (!gDungeon->unk644.unk17) {
+    if (!gDungeon->unk644.hasInventory) {
         windows.id[0].type = WINDOW_TYPE_NORMAL;
         windows.id[0].pos.y++;
     }
diff --git a/src/friend_area_action_menu.c b/src/friend_area_action_menu.c
index 9220cc7a8..6d5ff8b7a 100644
--- a/src/friend_area_action_menu.c
+++ b/src/friend_area_action_menu.c
@@ -202,7 +202,7 @@ void sub_8027274(void)
             break;
         case 0xd:
             HeldItemToSlot(&slot, &sUnknown_203B2BC->itemToGive);
-            sub_801B3C0(&slot);
+            InitItemDescriptionWindow(&slot);
             break;
         case 0xe:
             unk_CopyMoves4To8(sUnknown_203B2BC->moves,sUnknown_203B2BC->pokeStruct->moves);
@@ -625,7 +625,7 @@ void sub_8027C84()
     {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             SetFriendAreaActionMenuState(0xB);
         case 0:
         case 1:
diff --git a/src/friend_list_menu.c b/src/friend_list_menu.c
index 6797e99ff..aad9ac460 100644
--- a/src/friend_list_menu.c
+++ b/src/friend_list_menu.c
@@ -219,7 +219,7 @@ void sub_8025518(void)
         break;
     case FRIEND_LIST_MENU_STATE_INFO:
         HeldItemToSlot(&item, &gUnknown_203B2B4->item1);
-        sub_801B3C0(&item);
+        InitItemDescriptionWindow(&item);
         break;
     case FRIEND_LIST_MENU_STATE_ITEM_GIVEN:
         gUnknown_203B2B4->fallbackState = 2;
@@ -560,7 +560,7 @@ void sub_8025D90(void)
     {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             SetFriendListMenuState(0xC);
         case 0:
         case 1:
diff --git a/src/friend_rescue.c b/src/friend_rescue.c
index 0f02fb76a..75426d02e 100644
--- a/src/friend_rescue.c
+++ b/src/friend_rescue.c
@@ -693,7 +693,7 @@ void CleanFriendRescueMenu(void)
     sub_802F2C0();
     sub_8030DE4();
     sub_802453C();
-    sub_801B450();
+    FreeItemDescriptionWindow();
   }
 }
 
@@ -2470,7 +2470,7 @@ void sub_8034B88(void)
             RestoreUnkTextStruct_8006518(&gUnknown_203B33C->unk3BC);
             ResetUnusedInputStruct();
             ShowWindows(NULL, TRUE, TRUE);
-            sub_801B3C0(&gUnknown_203B33C->item);
+            InitItemDescriptionWindow(&gUnknown_203B33C->item);
             SetFriendRescueMenuState(0x61);
             break;
     }
@@ -2482,7 +2482,7 @@ void sub_8034C38(void)
     {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             ResetUnusedInputStruct();
             ShowWindows(&gUnknown_203B33C->unk3BC, TRUE, TRUE);
             sub_801CB5C(TRUE);
@@ -2519,7 +2519,7 @@ void sub_8034C98(void)
             RestoreUnkTextStruct_8006518(&gUnknown_203B33C->unk3BC);
             ResetUnusedInputStruct();
             ShowWindows(NULL, TRUE, TRUE);
-            sub_801B3C0(&gUnknown_203B33C->item);
+            InitItemDescriptionWindow(&gUnknown_203B33C->item);
             SetFriendRescueMenuState(0x61);
             break;
         case 5:
diff --git a/src/items.c b/src/items.c
index 69349b080..4f6ed3ce2 100644
--- a/src/items.c
+++ b/src/items.c
@@ -98,33 +98,32 @@ bool8 IsThrowableItem(u8 id)
     return TRUE;
 }
 
-void xxx_init_itemslot_8090A8C(Item *slot, u8 id, u8 param_3)
+void ItemIdToSlot(Item *slot, u8 id, u8 makeSticky)
 {
-  u32 uVar3;
-  u32 uVar4;
+    if (id != ITEM_NOTHING) {
+        slot->flags = ITEM_FLAG_EXISTS;
+        slot->id = id;
+        if (IsThrowableItem(id)) {
+            s32 min = GetSpawnAmountRange(id, MIN_SPAWN_AMOUNT);
+            s32 max = GetSpawnAmountRange(id, MAX_SPAWN_AMOUNT);
+            slot->quantity = RandRange(min, max);
+        }
+        else if (GetItemCategory(id) == CATEGORY_POKE) {
+            slot->quantity = 1;
+        }
+        else {
+            slot->quantity  = 0;
+        }
 
-  if (id != ITEM_NOTHING) {
-    slot->flags = ITEM_FLAG_EXISTS;
-    slot->id = id;
-    if (IsThrowableItem(id)) {
-        uVar3 = GetSpawnAmountRange(id, MIN_SPAWN_AMOUNT);
-        uVar4 = GetSpawnAmountRange(id, MAX_SPAWN_AMOUNT);
-        slot->quantity = RandRange(uVar3, uVar4);
+        if (makeSticky) {
+            slot->flags |= ITEM_FLAG_STICKY;
+        }
     }
-    else if (GetItemCategory(id) == CATEGORY_POKE)
-        slot->quantity  = 1;
-    else
+    else {
+        slot->flags = 0;
+        slot->id = ITEM_NOTHING;
         slot->quantity  = 0;
-
-    if (param_3 != 0)
-        slot->flags |= ITEM_FLAG_STICKY;
-
-  }
-  else {
-    slot->flags = 0;
-    slot->id = ITEM_NOTHING;
-    slot->quantity  = 0;
-  }
+    }
 }
 
 void xxx_init_helditem_8090B08(BulkItem *held, u8 id)
@@ -299,7 +298,7 @@ void BufferItemName(u8* dest, u8 id, struct unkStruct_8090F58* a2)
   Item unkItem;
 
   strncpy(acStack104, gItemParametersData[id].name, 80);
-  xxx_init_itemslot_8090A8C(&unkItem, id, 0);
+  ItemIdToSlot(&unkItem, id, 0);
   unkItem.quantity = 1;
   sub_8090F58(dest, acStack104, &unkItem, a2);
 }
@@ -548,7 +547,7 @@ void ClearItemSlotAt(u32 index)
 bool8 sub_809124C(u8 id, u8 param_3)
 {
   Item temp;
-  xxx_init_itemslot_8090A8C(&temp, id, param_3);
+  ItemIdToSlot(&temp, id, param_3);
   return AddItemToInventory(&temp);
 }
 
@@ -1201,7 +1200,7 @@ u8 sub_8091E94(s32 a0, s32 a1, s32 a2)
 {
     s32 id, i, arrId;
     u8 foundCategory, ret;
-    struct UnkDungeonGlobal_unk1C590 data;
+    struct ItemSpawns data;
     s16 rawArray[NUM_ITEM_CATEGORIES + NUMBER_OF_ITEM_IDS];
     const u16 *ptr = gUnknown_8108E58[a0 - 1];
 
diff --git a/src/kangaskhan_storage1.c b/src/kangaskhan_storage1.c
index a5b6cfa36..76b2e6515 100644
--- a/src/kangaskhan_storage1.c
+++ b/src/kangaskhan_storage1.c
@@ -323,7 +323,7 @@ static void sub_8016FF8(void)
             break;
         case 16:
         case 26:
-            sub_801B3C0(&gKangaskhanStorageWork->storedItem);
+            InitItemDescriptionWindow(&gKangaskhanStorageWork->storedItem);
             break;
         case 27:
             sub_80177F8();
@@ -669,14 +669,14 @@ static void sub_8017B88(void)
                 UpdateKangaskhanStorageState(28);
             else {
                 gKangaskhanStorageWork->id = sub_801CB24();
-                xxx_init_itemslot_8090A8C(&gKangaskhanStorageWork->storedItem, gKangaskhanStorageWork->id, 0);
+                ItemIdToSlot(&gKangaskhanStorageWork->storedItem, gKangaskhanStorageWork->id, 0);
                 gKangaskhanStorageWork->storedItem.quantity = 1;
                 UpdateKangaskhanStorageState(25);
             }
             break;
         case 4:
             gKangaskhanStorageWork->id = sub_801CB24();
-            xxx_init_itemslot_8090A8C(&gKangaskhanStorageWork->storedItem, gKangaskhanStorageWork->id, 0);
+            ItemIdToSlot(&gKangaskhanStorageWork->storedItem, gKangaskhanStorageWork->id, 0);
             gKangaskhanStorageWork->storedItem.quantity = 1;
             UpdateKangaskhanStorageState(26);
             break;
@@ -785,7 +785,7 @@ static void sub_8017DC0(void)
             break;
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             UpdateKangaskhanStorageState(14);
             break;
     }
@@ -800,7 +800,7 @@ static void sub_8017DDC(void)
             break;
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             UpdateKangaskhanStorageState(23);
             break;
     }
diff --git a/src/kangaskhan_storage2.c b/src/kangaskhan_storage2.c
index 031183c8d..ca026110f 100644
--- a/src/kangaskhan_storage2.c
+++ b/src/kangaskhan_storage2.c
@@ -168,7 +168,7 @@ static void sub_8018100(void)
             sub_8012D60(&sUnknown_203B20C->unk70, sUnknown_203B20C->unk20, 0, sUnknown_203B20C->unk60, sUnknown_203B20C->menuAction2, 2);
             break;
         case 7:
-            sub_801B3C0(&sUnknown_203B20C->item);
+            InitItemDescriptionWindow(&sUnknown_203B20C->item);
             break;
         case 10:
             sub_801C8C4(1, 3, 0, 10);
@@ -202,7 +202,7 @@ static void sub_8018100(void)
             sub_8012D60(&sUnknown_203B20C->unk70, sUnknown_203B20C->unk20, 0, sUnknown_203B20C->unk60, sUnknown_203B20C->menuAction3, 2);
             break;
         case 14:
-            sub_801B3C0(&sUnknown_203B20C->item);
+            InitItemDescriptionWindow(&sUnknown_203B20C->item);
             break;
         case KANGASKHAN_STORAGE_2_INIT:
         default:
@@ -447,14 +447,14 @@ static void sub_80186F8(void)
             }
             else {
                 sUnknown_203B20C->id = sub_801CB24();
-                xxx_init_itemslot_8090A8C(&sUnknown_203B20C->item, sUnknown_203B20C->id, 0);
+                ItemIdToSlot(&sUnknown_203B20C->item, sUnknown_203B20C->id, 0);
                 sUnknown_203B20C->item.quantity = 1;
                 UpdateKangaskhanStorage2State(13);
             }
             break;
         case 4:
             sUnknown_203B20C->id = sub_801CB24();
-            xxx_init_itemslot_8090A8C(&sUnknown_203B20C->item, sUnknown_203B20C->id, 0);
+            ItemIdToSlot(&sUnknown_203B20C->item, sUnknown_203B20C->id, 0);
             sUnknown_203B20C->item.quantity = 1;
             UpdateKangaskhanStorage2State(14);
             break;
@@ -606,7 +606,7 @@ static void sub_8018AC8(void)
     switch (sub_801B410()) {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             UpdateKangaskhanStorage2State(5);
             break;
         case 0:
@@ -621,7 +621,7 @@ static void sub_8018AE4(void)
     switch (sub_801B410()) {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             UpdateKangaskhanStorage2State(11);
             break;
         case 0:
diff --git a/src/kecleon_bros1.c b/src/kecleon_bros1.c
index bc56a7c83..2d6f440f6 100644
--- a/src/kecleon_bros1.c
+++ b/src/kecleon_bros1.c
@@ -394,7 +394,7 @@ static void UpdateKecleonStoreDialogue(void)
             break;
         case KECLEON_STORE_BUY_ITEM_INFO:
         case KECLEON_STORE_SELL_ITEM_INFO:
-            sub_801B3C0(&sKecleonBrosWork1->soldItem);
+            InitItemDescriptionWindow(&sKecleonBrosWork1->soldItem);
             break;
         case KECLEON_STORE_SELL_ITEM_RECEIPT:
             if (GetNumberOfFilledInventorySlots() == 0 || gTeamInventoryRef->teamMoney >= MAX_TEAM_MONEY) {
@@ -699,7 +699,7 @@ static void sub_80199CC(void)
                 item = GetKecleonWareItem(sKecleonBrosWork1->wareShopItemIndex);
             }
 
-            xxx_init_itemslot_8090A8C(&sKecleonBrosWork1->soldItem, item->id, 0);
+            ItemIdToSlot(&sKecleonBrosWork1->soldItem, item->id, 0);
             sKecleonBrosWork1->soldItem.quantity = item->quantity;
             sKecleonBrosWork1->itemSellPrice = GetStackBuyPrice(&sKecleonBrosWork1->soldItem);
             SetKecleonBrosState(20);
@@ -714,7 +714,7 @@ static void sub_80199CC(void)
                 item = GetKecleonWareItem(sKecleonBrosWork1->wareShopItemIndex);
             }
 
-            xxx_init_itemslot_8090A8C(&sKecleonBrosWork1->soldItem, item->id, 0);
+            ItemIdToSlot(&sKecleonBrosWork1->soldItem, item->id, 0);
             sKecleonBrosWork1->soldItem.quantity = item->quantity;
             sKecleonBrosWork1->itemSellPrice = GetStackBuyPrice(&sKecleonBrosWork1->soldItem);
             SetKecleonBrosState(KECLEON_STORE_BUY_ITEM_INFO);
@@ -831,7 +831,7 @@ static void sub_8019D30(void)
     switch (sub_801B410()) {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             SetKecleonBrosState(19);
             break;
         case 0:
@@ -845,7 +845,7 @@ static void sub_8019D4C(void)
     switch (sub_801B410()) {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             SetKecleonBrosState(27);
             break;
         case 0:
diff --git a/src/luminous_cave.c b/src/luminous_cave.c
index 3f381d91e..ba628e768 100644
--- a/src/luminous_cave.c
+++ b/src/luminous_cave.c
@@ -268,7 +268,7 @@ static void UpdateLuminousCaveDialogue(void)
             break;
         case 9:
         case 14:
-            sub_801B3C0(&sLuminousCaveWork->chosenItem);
+            InitItemDescriptionWindow(&sLuminousCaveWork->chosenItem);
             break;
         case LUMINOUS_CAVE_LACK_WHAT_NEEDED:
             sLuminousCaveWork->fallbackState = LUMINOUS_CAVE_GIVE_ITEM_1;
@@ -671,7 +671,7 @@ static void sub_80251CC(void)
     {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             UpdateLuminousCaveState(0x7);
             break;
         case 0:
@@ -686,7 +686,7 @@ static void sub_80251E8(void)
     {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             UpdateLuminousCaveState(0xC);
             break;
         case 0:
diff --git a/src/move_actions.c b/src/move_actions.c
index 1a797a308..1047ef507 100644
--- a/src/move_actions.c
+++ b/src/move_actions.c
@@ -116,9 +116,7 @@ void sub_8075900(Entity *pokemon, u8 r1);
 extern u8 sub_8044B28(void);
 extern void sub_807EC28(bool8);
 extern void sub_806F370(Entity *r0, Entity *r1, u32, u32, u8 *, u8, s32, u32, u32, u32);
-extern void sub_804652C(Entity *, Entity *, Item *, u32, DungeonPos *);
 extern void CalcDamage(Entity *, Entity *, u8, u32, u32, s32 *, u32, u16, u32);
-extern void sub_8045C28(Item *, u8 , u8);
 static void sub_805A7D4(Entity *, Entity *, Item *, DungeonPos *);
 extern void MudWaterSportEffect(u32);
 extern void CalcDamage(Entity *, Entity *, u8, u32, u32, s32 *, u32, u16, u32);
@@ -2391,7 +2389,7 @@ bool8 PayDayMoveAction(Entity *pokemon, Entity *target, Move *move, u32 param_4)
       if (!EntityIsValid(target)) {
         pos.x = 0;
         pos.y = 0;
-        sub_8045C28(&item,ITEM_POKE,2);
+        CreateItemWithStickyChance(&item,ITEM_POKE,2);
         sub_805A7D4(pokemon,target,&item,&pos);
       }
     }
diff --git a/src/party_list_menu.c b/src/party_list_menu.c
index d8a525d4d..9b85d90d2 100644
--- a/src/party_list_menu.c
+++ b/src/party_list_menu.c
@@ -229,7 +229,7 @@ void HandlePartyListMenuCallback(void)
             break;
         case 0x15:
             HeldItemToSlot(&item,&sUnknown_203B2B8->item1);
-            sub_801B3C0(&item);
+            InitItemDescriptionWindow(&item);
             break;
         case PARTY_LIST_STATE_MOVES:
             unk_CopyMoves4To8(sUnknown_203B2B8->moves,sUnknown_203B2B8->pokeStruct->moves);
@@ -699,7 +699,7 @@ void sub_8026CF0(void)
     {
         case 2:
         case 3:
-            sub_801B450();
+            FreeItemDescriptionWindow();
             SetPartyListMenuState(PARTY_LIST_STATE_GIVE_ITEM_1);
             break;
         case 0:
diff --git a/src/status_actions.c b/src/status_actions.c
index de33f439a..1f714d7de 100644
--- a/src/status_actions.c
+++ b/src/status_actions.c
@@ -36,8 +36,7 @@
 
 extern void sub_807F43C(Entity *, Entity *);
 extern void HandleOneRoomOrb(Entity *, Entity *);
-extern u32 sub_803D73C(u32);
-extern void sub_8045C28(Item *, u8 , u8);
+extern u32 GetRandomFloorItem(u32);
 extern void sub_80464C8(Entity *, DungeonPos *, Item *);
 extern void sub_8068FE0(Entity *, u32, Entity *r2);
 extern void sub_806F370(Entity *r0, Entity *r1, u32, u32, u8 *, u8, s32, u32, u32, u32);
@@ -524,13 +523,13 @@ bool8 RecycleMoveAction(Entity * pokemon, Entity * target, Move *move, s32 param
             {
                 Item *item = &gTeamInventoryRef->teamItems[i];
                 if (item->id == ITEM_TM_USED_TM) {
-                    xxx_init_itemslot_8090A8C(item, item->quantity + 0x7d,0);
+                    ItemIdToSlot(item, item->quantity + 0x7d,0);
                     isTMRecycled = TRUE;
                 }
             }
         }
         if (ItemExists(&entityInfo->heldItem) && (entityInfo->heldItem.id == ITEM_TM_USED_TM)) {
-            xxx_init_itemslot_8090A8C(&entityInfo->heldItem,entityInfo->heldItem.quantity + 0x7D,0);
+            ItemIdToSlot(&entityInfo->heldItem,entityInfo->heldItem.quantity + 0x7D,0);
             isTMRecycled = TRUE;
         }
     }
@@ -1133,7 +1132,7 @@ bool8 ItemizeOrbAction(Entity *pokemon, Entity *target, Move *move, s32 param_4)
     else
     {
         target->isVisible = FALSE;
-        sub_8045C28(&stack, sub_803D73C(0), 0);
+        CreateItemWithStickyChance(&stack, GetRandomFloorItem(0), 0);
         sub_80464C8(pokemon, &posStruct, &stack);
         sub_8068FE0(target, 0x218, pokemon);
         return TRUE;
diff --git a/src/thank_you_wonder_mail.c b/src/thank_you_wonder_mail.c
index a3daad4eb..5455bd5b6 100644
--- a/src/thank_you_wonder_mail.c
+++ b/src/thank_you_wonder_mail.c
@@ -411,7 +411,7 @@ void CleanThankYouMailPelipper(void)
         MemoryFree(sUnknown_203B2C4);
         sUnknown_203B2C4 = NULL;
         sub_8030DE4();
-        sub_801B450();
+        FreeItemDescriptionWindow();
         sub_803084C();
         sub_801CBB8();
         sub_80155F0();
@@ -663,7 +663,7 @@ void sub_802A28C(void)
         RestoreUnkTextStruct_8006518(&sUnknown_203B2C4->unk3BC);
         ResetUnusedInputStruct();
         ShowWindows(NULL, TRUE, TRUE);
-        sub_801B3C0(&sUnknown_203B2C4->unk41C);
+        InitItemDescriptionWindow(&sUnknown_203B2C4->unk41C);
         SetThankYouMailMenuState(SHOW_ITEM_TO_SEND_INFO);
         break;
   }
@@ -675,7 +675,7 @@ void sub_802A33C(void)
  {
      case 2:
      case 3:
-        sub_801B450();
+        FreeItemDescriptionWindow();
         ResetUnusedInputStruct();
         ShowWindows(&sUnknown_203B2C4->unk3BC, TRUE, TRUE);
         sub_801CB5C(TRUE);
@@ -714,7 +714,7 @@ void sub_802A39C(void)
             RestoreUnkTextStruct_8006518(&sUnknown_203B2C4->unk3BC);
             ResetUnusedInputStruct();
             ShowWindows(NULL, TRUE, TRUE);
-            sub_801B3C0(&sUnknown_203B2C4->unk41C);
+            InitItemDescriptionWindow(&sUnknown_203B2C4->unk41C);
             SetThankYouMailMenuState(SHOW_ITEM_TO_SEND_INFO);
             break;
       case CANCEL_ACTION:
diff --git a/src/trade_items_menu.c b/src/trade_items_menu.c
index 47d528bbc..fc9804dd8 100644
--- a/src/trade_items_menu.c
+++ b/src/trade_items_menu.c
@@ -179,7 +179,7 @@ void sub_80365AC(void)
         RestoreUnkTextStruct_8006518(&sTradeItemsMenu->unk1E4);
         ResetUnusedInputStruct();
         ShowWindows(NULL, TRUE, TRUE);
-        sub_801B3C0(&sTradeItemsMenu->itemToSend);
+        InitItemDescriptionWindow(&sTradeItemsMenu->itemToSend);
         SetTradeItemMenu(TRADE_ITEMS_ITEM_INFO);
         break;
   }
@@ -203,7 +203,7 @@ void sub_8036674(void)
         RestoreUnkTextStruct_8006518(&sTradeItemsMenu->unk1E4);
         ResetUnusedInputStruct();
         ShowWindows(NULL, TRUE, TRUE);
-        sub_801B3C0(&sTradeItemsMenu->itemToSend);
+        InitItemDescriptionWindow(&sTradeItemsMenu->itemToSend);
         SetTradeItemMenu(TRADE_ITEMS_ITEM_INFO);
         break;
     case 7:
@@ -222,7 +222,7 @@ void sub_8036728(void)
   {
       case 2:
       case 3:
-        sub_801B450();
+        FreeItemDescriptionWindow();
         ResetUnusedInputStruct();
         ShowWindows(&sTradeItemsMenu->unk1E4, TRUE, TRUE);
         sub_801CB5C(TRUE);
diff --git a/src/trap.c b/src/trap.c
index 036f18b2a..35624f6ad 100644
--- a/src/trap.c
+++ b/src/trap.c
@@ -57,16 +57,13 @@ extern u32 gUnknown_8106A4C;
 extern u32 gUnknown_8106A50;
 
 void sub_806A9B4(Entity *, u32);
-void sub_80461C8(DungeonPos *, u32);
 void ShowDungeonMapAtPos(s32, s32);
 s16 sub_803D970(u32);
 bool8 sub_806AA0C(s32, s32);
 void sub_80421EC(DungeonPos *, u32);
-extern void sub_804687C(Entity *, DungeonPos *, DungeonPos *, Item *, u32);
 bool8 sub_8045888(Entity *);
 u8 GetFloorType(void);
 void sub_8068FE0(Entity *, u32, Entity *);
-void sub_8045C28(Item *, u8 , u8);
 void sub_8045BF8(u8 *, Item *);
 void DealDamageToEntity(Entity *,s16,u32,u32);
 void sub_806F480(Entity *, u32);
@@ -503,7 +500,7 @@ void HandleGrimyTrap(Entity *pokemon, Entity *target)
             if (((GetItemCategory(itemStack[index]->id) == CATEGORY_FOOD_GUMMIES) && (itemStack[index]->id != ITEM_GRIMY_FOOD)) &&
                 (DungeonRandInt(100) < gGrimyTrapActivateChance)) {
                 badFoodCount++;
-                sub_8045C28(itemStack[index], ITEM_GRIMY_FOOD, 2);
+                CreateItemWithStickyChance(itemStack[index], ITEM_GRIMY_FOOD, 2);
             }
         }
         if (badFoodCount == 1) {
diff --git a/src/weather.c b/src/weather.c
index 1a5976f7f..80069ab39 100644
--- a/src/weather.c
+++ b/src/weather.c
@@ -24,7 +24,7 @@ u8 GetApparentWeather(Entity *pokemon)
 void sub_807E5AC(void)
 {
     u8 weather;
-    weather = gDungeon->unk1C574.unk4;
+    weather = gDungeon->floorProperties.unk4;
     if(weather == WEATHER_COUNT)
         weather = DungeonRandInt(WEATHER_COUNT);
     sub_807E5E4(weather);
diff --git a/src/wonder_mail_main_menu.c b/src/wonder_mail_main_menu.c
index 5cec3e8e2..bbfd2148e 100644
--- a/src/wonder_mail_main_menu.c
+++ b/src/wonder_mail_main_menu.c
@@ -168,7 +168,7 @@ void CleanWonderMailMenu(void)
     MemoryFree(gUnknown_203B3E8);
     gUnknown_203B3E8 = NULL;
     sub_8030DE4(); // Frees 203B324
-    sub_801B450(); // Frees 203B230
+    FreeItemDescriptionWindow(); // Frees 203B230
     sub_803084C(); // Frees 203B320
     sub_801CBB8(); // Frees 203B244
     sub_80155F0(); // Frees 203B1FC