diff --git a/src/blow_away.c b/src/blow_away.c
index bc03a7bf3..69b2184c5 100644
--- a/src/blow_away.c
+++ b/src/blow_away.c
@@ -29,9 +29,6 @@
 
 void sub_804EB30();
 bool8 ExposeTrap(s32 x, s32 y);
-void ShowWholeRevealedDungeonMap();
-void sub_8049ED4();
-void sub_806A5B8(Entity *);
 u8 sub_8045888(Entity *);
 void sub_807EC28(u32);
 u8 sub_8044B28(void);
diff --git a/src/code_8041AD0.c b/src/code_8041AD0.c
index cb89cd754..e7929a8e8 100644
--- a/src/code_8041AD0.c
+++ b/src/code_8041AD0.c
@@ -55,10 +55,7 @@ extern void sub_80429A0(Entity *);
 void sub_8042B34(s32 a0, s32 a1, s32 a2);
 extern bool8 sub_8042CC0(void);
 extern void sub_8042D7C(void);
-extern u8 GetFloorType(void);
 extern bool8 sub_8045888(Entity *);
-extern s32 sub_80416E0(PixelPos*, u32, bool8);
-extern u32 sub_8041764(unkStruct_80416E0 *, bool8);
 extern u32 sub_800E49C();
 extern void sub_800F15C(s32);
 extern void sub_800EF40(u8 r0, u8 r1);
diff --git a/src/code_8066D04.c b/src/code_8066D04.c
index c3cf50ab5..1250f4c2b 100644
--- a/src/code_8066D04.c
+++ b/src/code_8066D04.c
@@ -39,24 +39,16 @@
 #include "trap.h"
 
 extern void sub_8071DA4(Entity *);
-extern void sub_806A1B0(Entity *);
 extern void sub_8057588(Entity * pokemon, u8 param_2);
-extern bool8 sub_806A58C(s16 a0);
-extern bool8 sub_806A564(s16 r0);
-extern void sub_8045C08(u8 *buffer, Item *item);
 extern bool8 sub_8045888(Entity *);
 extern Item *sub_8044D90(Entity *, s32, u32);
-void sub_8045BF8(u8 *, Item *);
 u8 sub_8048D50();
-void sub_8044DF0();
 void sub_8042208(Entity *pokemon, u8 r1);
 void sub_803E708();
 void sub_80479B8();
 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 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);
 void sub_8067558(Entity *entity, Entity *targetEntity, s32 a2);
@@ -64,8 +56,6 @@ void sub_8067794(Entity *entity, Entity *targetEntity, s32 a2);
 extern void sub_807EF84(void);
 extern void sub_80845E0(Entity *entity);
 extern void sub_8084448(Entity *entity);
-extern void sub_806A3D4(u8 *dst, s32 _a1, s32 id, bool32 _a3);
-extern Entity * sub_80696A8(Entity *target);
 
 void HandlePickUpPlayerAction(Entity *entity)
 {
diff --git a/src/code_80718D8.c b/src/code_80718D8.c
index 0a90e9544..4e0b9ccce 100644
--- a/src/code_80718D8.c
+++ b/src/code_80718D8.c
@@ -8,6 +8,7 @@
 #include "code_8077274_1.h"
 #include "constants/dungeon.h"
 #include "dungeon_map_access.h"
+#include "dungeon_misc.h"
 #include "dungeon_random.h"
 #include "dungeon_util.h"
 #include "dungeon.h"
@@ -30,18 +31,14 @@ EWRAM_DATA s32 gUnknown_202F31C[2] = {0, 0};
 EWRAM_DATA s32 gUnknown_202F324[2] = {0, 0};
 
 extern void ResetMonEntityData(EntityInfo *, u32);
-void sub_8069E0C(Entity *pokemon);
 void sub_8042A44(Entity *r0);
 void sub_8083D78(void);
-extern bool8 sub_803D930(u32);
 void sub_8083D58(void);
 void sub_8072778(Entity *, Entity *, u8, u8);
 bool8 sub_80725A4(Entity *, Entity *);
 void GetAvailTacticsforLvl_Bool(u8 *tacticsBuffer, s32 pokeLevel);
 bool8 sub_80723D0(Entity *, Entity *, u8, u8);
 void sub_807218C(Entity *);
-void sub_806A2BC(Entity *, u32);
-void sub_806A3D4(u8 *, s32, s32, s32);
 
 extern bool8 sub_803D930(u32);
 extern void sub_8072B78(Entity *pokemon, Entity *target, s16 id);
diff --git a/src/code_8073CF0.c b/src/code_8073CF0.c
index 925c1ab8f..85f77acde 100644
--- a/src/code_8073CF0.c
+++ b/src/code_8073CF0.c
@@ -33,7 +33,6 @@
 #include "dungeon_strings.h"
 
 extern bool8 sub_8044B28(void);
-extern void sub_8075708(Entity *entity);
 extern void DealDamageToEntity(Entity *, s32, u32, u32);
 extern void sub_805229C(void);
 extern void sub_807E8F0(Entity *);
diff --git a/src/code_809A560.c b/src/code_809A560.c
index 1faf272a8..5c95cbd48 100644
--- a/src/code_809A560.c
+++ b/src/code_809A560.c
@@ -41,7 +41,6 @@ extern u16 gUnknown_20399DE;
 extern bool8 sub_802FCF0(void);
 u8 ScriptPrintText_809B2B8(struct unkStruct_3001B64_unkC *, s32, s32, const char *);
 bool8 IsTextboxOpen_809B40C(struct unkStruct_3001B64_unkC *);
-extern void sub_801416C(s32, s32);
 extern void ResetTextbox_809B294(void);
 extern s32 sub_803B168(void);
 extern void sub_803B1BC(void);
diff --git a/src/warp_target.c b/src/warp_target.c
index 1648999a2..df2ee2388 100644
--- a/src/warp_target.c
+++ b/src/warp_target.c
@@ -29,11 +29,8 @@
 
 extern u32 gDungeonFramesCounter;
 
-void sub_804EB30();
 bool8 ExposeTrap(s32 x, s32 y);
 void ShowWholeRevealedDungeonMap();
-void sub_8049ED4();
-void sub_806A5B8(Entity *);
 u8 sub_8045888(Entity *);
 void sub_807EC28(u32);
 u8 sub_8044B28(void);
diff --git a/src/weather.c b/src/weather.c
index c06790b02..5a08c3b4c 100644
--- a/src/weather.c
+++ b/src/weather.c
@@ -37,7 +37,6 @@
 #include "sprite.h"
 #include "dungeon_strings.h"
 
-extern void TriggerWeatherAbilities(void);
 extern void sub_804178C(u32);
 extern void sub_803E874(bool8 r10, s32 r9);
 extern s32 CalculateStatusTurns(Entity *target, const s16 *turnRange, bool8 factorCurerSkills);