diff --git a/include/battle/ov16_0223DF00.h b/include/battle/ov16_0223DF00.h
index e7c9cf625e..3f83339648 100644
--- a/include/battle/ov16_0223DF00.h
+++ b/include/battle/ov16_0223DF00.h
@@ -192,7 +192,7 @@ u32 BattleSystem_BattleStatus(BattleSystem *battleSys);
 enum Time BattleSystem_Time(BattleSystem *battleSys);
 int ov16_0223EC04(BattleSystem *battleSys);
 u8 ov16_0223EC58(BattleSystem *battleSys, int param1, u8 param2);
-u16 ov16_0223ECC4(FieldBattleDTO *param0, int *param1, int *param2);
+u16 Battle_FindEvolvingPartyMember(FieldBattleDTO *param0, int *param1, int *param2);
 u8 ov16_0223ED60(BattleSystem *battleSys);
 u8 ov16_0223ED6C(BattleSystem *battleSys);
 int BattleSystem_NumSafariBalls(BattleSystem *battleSys);
diff --git a/src/battle/battle_display.c b/src/battle/battle_display.c
index 911a3de7ef..91487f581e 100644
--- a/src/battle/battle_display.c
+++ b/src/battle/battle_display.c
@@ -3171,7 +3171,7 @@ static void ov16_02260B04(SysTask *param0, void *param1)
 
     v3 = ov16_0223ED6C(v0->unk_00);
     v2 = BattleMon_Get(BattleSystem_Context(v0->unk_00), v0->unk_09, 0, NULL);
-    v1 = SpeciesData_GetSpeciesValue(v2, 26);
+    v1 = SpeciesData_GetSpeciesValue(v2, SPECIES_DATA_SAFARI_FLEE_RATE);
     v1 = v1 * Unk_ov16_0226F194[v3][0] / Unk_ov16_0226F194[v3][1];
 
     if ((BattleSystem_RandNext(v0->unk_00) % 255) <= v1) {
diff --git a/src/battle/ov16_0223B140.c b/src/battle/ov16_0223B140.c
index 0073b03b84..906ffbe776 100644
--- a/src/battle/ov16_0223B140.c
+++ b/src/battle/ov16_0223B140.c
@@ -263,7 +263,7 @@ BOOL Battle_Main(OverlayManager *param0, int *param1)
         int v3;
         Pokemon *v4;
 
-        v2 = ov16_0223ECC4(v0, &v1, &v3);
+        v2 = Battle_FindEvolvingPartyMember(v0, &v1, &v3);
 
         if (v2) {
             Heap_Create(3, 73, 0x30000);
diff --git a/src/battle/ov16_0223DF00.c b/src/battle/ov16_0223DF00.c
index bacb2c9f9d..bc46990f2d 100644
--- a/src/battle/ov16_0223DF00.c
+++ b/src/battle/ov16_0223DF00.c
@@ -124,7 +124,7 @@ u32 ov16_0223EBEC(BattleSystem *battleSystem);
 enum Time BattleSystem_Time(BattleSystem *battleSys);
 int ov16_0223EC04(BattleSystem *battleSystem);
 u8 ov16_0223EC58(BattleSystem *battleSystem, int param1, u8 param2);
-u16 ov16_0223ECC4(FieldBattleDTO *param0, int *param1, int *param2);
+u16 Battle_FindEvolvingPartyMember(FieldBattleDTO *param0, int *param1, int *param2);
 u8 ov16_0223ED60(BattleSystem *battleSystem);
 u8 ov16_0223ED6C(BattleSystem *battleSystem);
 int BattleSystem_NumSafariBalls(BattleSystem *battleSystem);
@@ -956,35 +956,35 @@ u8 ov16_0223EC58(BattleSystem *battleSystem, int param1, u8 param2)
     return 0;
 }
 
-u16 ov16_0223ECC4(FieldBattleDTO *param0, int *param1, int *param2)
+u16 Battle_FindEvolvingPartyMember(FieldBattleDTO *dto, int *outPartySlot, int *outEvoType)
 {
-    Pokemon *v0;
-    u16 v1;
+    Pokemon *mon;
+    u16 species = SPECIES_NONE;
 
-    v1 = 0;
-
-    if ((param0->resultMask != BATTLE_RESULT_WIN) && (param0->resultMask != BATTLE_RESULT_CAPTURED_MON) && (param0->resultMask != BATTLE_RESULT_PLAYER_FLED)) {
-        return 0;
+    if (dto->resultMask != BATTLE_RESULT_WIN
+        && dto->resultMask != BATTLE_RESULT_CAPTURED_MON
+        && dto->resultMask != BATTLE_RESULT_PLAYER_FLED) {
+        return SPECIES_NONE;
     }
 
-    while (param0->leveledUpMonsMask) {
-        for (param1[0] = 0; param1[0] < 6; param1[0]++) {
-            if (param0->leveledUpMonsMask & FlagIndex(param1[0])) {
-                param0->leveledUpMonsMask &= (FlagIndex(param1[0]) ^ 0xffffffff);
+    while (dto->leveledUpMonsMask) {
+        for (*outPartySlot = 0; *outPartySlot < 6; (*outPartySlot)++) {
+            if (dto->leveledUpMonsMask & FlagIndex(*outPartySlot)) {
+                dto->leveledUpMonsMask &= (FlagIndex(*outPartySlot) ^ 0xFFFFFFFF);
                 break;
             }
         }
 
-        if (param1[0] < 6) {
-            v0 = Party_GetPokemonBySlotIndex(param0->parties[0], param1[0]);
-
-            if ((v1 = Pokemon_GetEvolutionTargetSpecies(param0->parties[0], v0, EVO_CLASS_BY_LEVEL, param0->mapEvolutionMethod, param2))) {
-                return v1;
+        if (*outPartySlot < 6) {
+            mon = Party_GetPokemonBySlotIndex(dto->parties[BATTLE_SIDE_PLAYER], *outPartySlot);
+            species = Pokemon_GetEvolutionTargetSpecies(dto->parties[BATTLE_SIDE_PLAYER], mon, EVO_CLASS_BY_LEVEL, dto->mapEvolutionMethod, outEvoType);
+            if (species) {
+                return species;
             }
         }
     }
 
-    return v1;
+    return species;
 }
 
 u8 ov16_0223ED60(BattleSystem *battleSystem)
diff --git a/src/overlay005/ov5_021E622C.c b/src/overlay005/ov5_021E622C.c
index cfd684d7a0..0604b8eb7a 100644
--- a/src/overlay005/ov5_021E622C.c
+++ b/src/overlay005/ov5_021E622C.c
@@ -2600,7 +2600,7 @@ void ov5_021E6CF0(Pokemon *param0, u16 param1, u8 param2, TrainerInfo *param3, i
 {
     u8 v0, v1, v2;
     u16 v3;
-    u8 v4 = SpeciesData_GetSpeciesValue(param1, SPECIES_DATA_HATCH_CYCLES);
+    u8 hatchCycles = SpeciesData_GetSpeciesValue(param1, SPECIES_DATA_HATCH_CYCLES);
     Strbuf *v5;
 
     Pokemon_InitWith(param0, param1, 1, 32, FALSE, 0, OTID_NOT_SET, 0);
@@ -2609,7 +2609,7 @@ void ov5_021E6CF0(Pokemon *param0, u16 param1, u8 param2, TrainerInfo *param3, i
     v3 = ITEM_POKE_BALL;
 
     Pokemon_SetValue(param0, MON_DATA_POKEBALL, &v3);
-    Pokemon_SetValue(param0, MON_DATA_FRIENDSHIP, &v4);
+    Pokemon_SetValue(param0, MON_DATA_FRIENDSHIP, &hatchCycles);
     Pokemon_SetValue(param0, MON_DATA_MET_LEVEL, &v0);
 
     if (param2) {
@@ -2643,7 +2643,7 @@ void ov5_021E6DE8(Pokemon *param0, u16 param1, UnkStruct_02026310 *param2, u32 p
     u16 v1;
     u32 v2;
     Strbuf *v3;
-    u8 v4 = SpeciesData_GetSpeciesValue(param1, SPECIES_DATA_HATCH_CYCLES);
+    u8 hatchCycles = SpeciesData_GetSpeciesValue(param1, SPECIES_DATA_HATCH_CYCLES);
 
     v2 = sub_02026248(param2);
 
@@ -2669,7 +2669,7 @@ void ov5_021E6DE8(Pokemon *param0, u16 param1, UnkStruct_02026310 *param2, u32 p
     v1 = ITEM_POKE_BALL;
 
     Pokemon_SetValue(param0, MON_DATA_POKEBALL, &v1);
-    Pokemon_SetValue(param0, MON_DATA_FRIENDSHIP, &v4);
+    Pokemon_SetValue(param0, MON_DATA_FRIENDSHIP, &hatchCycles);
     Pokemon_SetValue(param0, MON_DATA_MET_LEVEL, &v0);
     Pokemon_SetValue(param0, MON_DATA_FORM, &param4);
 
@@ -2759,8 +2759,8 @@ static u8 ov5_021E6FF0(BoxPokemon **param0)
         v2[v5] = BoxPokemon_GetValue(param0[v5], MON_DATA_OT_ID, NULL);
         v4 = BoxPokemon_GetValue(param0[v5], MON_DATA_PERSONALITY, NULL);
         v3[v5] = Pokemon_GetGenderOf(v1[v5], v4);
-        v0[v5][0] = SpeciesData_GetSpeciesValue(v1[v5], 22);
-        v0[v5][1] = SpeciesData_GetSpeciesValue(v1[v5], 23);
+        v0[v5][0] = SpeciesData_GetSpeciesValue(v1[v5], SPECIES_DATA_EGG_GROUP_1);
+        v0[v5][1] = SpeciesData_GetSpeciesValue(v1[v5], SPECIES_DATA_EGG_GROUP_2);
     }
 
     if ((v0[0][0] == 15) || (v0[1][0] == 15)) {
diff --git a/src/overlay006/ov6_02240C9C.c b/src/overlay006/ov6_02240C9C.c
index db47593be3..5e3ecc94fa 100644
--- a/src/overlay006/ov6_02240C9C.c
+++ b/src/overlay006/ov6_02240C9C.c
@@ -1279,10 +1279,10 @@ static BOOL ov6_0224219C(const EncounterSlot *param0, const u8 maxEncounters, co
     u8 v1 = 0;
 
     for (v2 = 0; v2 < maxEncounters; v2++) {
-        u8 v3 = SpeciesData_GetSpeciesValue(param0[v2].species, SPECIES_DATA_TYPE_1);
-        u8 v4 = SpeciesData_GetSpeciesValue(param0[v2].species, SPECIES_DATA_TYPE_2);
+        u8 type1 = SpeciesData_GetSpeciesValue(param0[v2].species, SPECIES_DATA_TYPE_1);
+        u8 type2 = SpeciesData_GetSpeciesValue(param0[v2].species, SPECIES_DATA_TYPE_2);
 
-        if (v3 == type || v4 == type) {
+        if (type1 == type || type2 == type) {
             v0[v1++] = v2;
         }
     }
diff --git a/src/overlay006/ov6_022426AC.c b/src/overlay006/ov6_022426AC.c
index c5fde2f69b..b187d2bc52 100644
--- a/src/overlay006/ov6_022426AC.c
+++ b/src/overlay006/ov6_022426AC.c
@@ -4,6 +4,7 @@
 #include <string.h>
 
 #include "consts/gender.h"
+#include "generated/gender_ratios.h"
 
 #include "struct_defs/archived_sprite.h"
 #include "struct_defs/struct_0200C738.h"
@@ -49,7 +50,7 @@ void GreatMarshLookout_CreateLookoutMonSprite(GreatMarshLookout_SpriteResources
     resources->unk_1CC = 0;
 
     int gender;
-    u8 genderRatio = SpeciesData_GetSpeciesValue(species, SPECIES_DATA_PERSONAL_GENDER);
+    u8 genderRatio = SpeciesData_GetSpeciesValue(species, SPECIES_DATA_GENDER_RATIO);
 
     switch (genderRatio) {
     case GENDER_RATIO_MALE_ONLY:
diff --git a/src/overlay019/ov19_021D0D80.c b/src/overlay019/ov19_021D0D80.c
index 695c6fc2bb..43afcd07cb 100644
--- a/src/overlay019/ov19_021D0D80.c
+++ b/src/overlay019/ov19_021D0D80.c
@@ -3953,21 +3953,21 @@ static void ov19_021D58AC(UnkStruct_ov19_021D4DF0 *param0, BoxPokemon *param1, U
 {
     UnkStruct_ov19_021D5BAC *v0 = &(param0->unk_4C);
     BOOL v1 = BoxPokemon_EnterDecryptionContext(param1);
-    SpeciesData *v2;
+    SpeciesData *speciesData;
 
     v0->unk_00 = param1;
     v0->unk_04 = BoxPokemon_GetValue(param1, MON_DATA_SPECIES, NULL);
     v0->unk_06 = BoxPokemon_GetValue(param1, MON_DATA_HELD_ITEM, NULL);
     v0->unk_08 = sub_0207A294(sub_0207A274(param2->unk_11C), v0->unk_04);
     v0->unk_0F = BoxPokemon_GetValue(param1, MON_DATA_EGG_EXISTS, NULL);
-    v2 = SpeciesData_FromMonSpecies(v0->unk_04, 9);
-    v0->unk_0A = SpeciesData_GetLevelAt(v2, v0->unk_04, BoxPokemon_GetValue(param1, MON_DATA_EXP, NULL));
+    speciesData = SpeciesData_FromMonSpecies(v0->unk_04, 9);
+    v0->unk_0A = SpeciesData_GetLevelAt(speciesData, v0->unk_04, BoxPokemon_GetValue(param1, MON_DATA_EXP, NULL));
     v0->unk_0B = BoxPokemon_GetValue(param1, MON_DATA_MARKS, NULL);
     v0->unk_0C = BoxPokemon_GetValue(param1, MON_DATA_TYPE_1, NULL);
     v0->unk_0D = BoxPokemon_GetValue(param1, MON_DATA_TYPE_2, NULL);
 
     if ((v0->unk_0F == 0) && BoxPokemon_GetValue(param1, MON_DATA_NIDORAN_HAS_NICKNAME, NULL)) {
-        v0->unk_0E = SpeciesData_GetGenderOf(v2, v0->unk_04, BoxPokemon_GetValue(param1, MON_DATA_PERSONALITY, NULL));
+        v0->unk_0E = SpeciesData_GetGenderOf(speciesData, v0->unk_04, BoxPokemon_GetValue(param1, MON_DATA_PERSONALITY, NULL));
     } else {
         v0->unk_0E = 255;
     }
@@ -3995,7 +3995,7 @@ static void ov19_021D58AC(UnkStruct_ov19_021D4DF0 *param0, BoxPokemon *param1, U
         MessageLoader_GetStrbuf(param2->unk_198, v3, v0->unk_24);
     }
 
-    SpeciesData_Free(v2);
+    SpeciesData_Free(speciesData);
     BoxPokemon_ExitDecryptionContext(param1, v1);
 }
 
diff --git a/src/overlay019/ov19_021DB8E4.c b/src/overlay019/ov19_021DB8E4.c
index 82b7eea4c6..e896992b26 100644
--- a/src/overlay019/ov19_021DB8E4.c
+++ b/src/overlay019/ov19_021DB8E4.c
@@ -3,6 +3,7 @@
 #include <nitro.h>
 #include <string.h>
 
+#include "generated/pokemon_colors.h"
 #include "generated/species.h"
 
 #include "struct_decls/struct_020797DC_decl.h"
@@ -227,35 +228,35 @@ BOOL ov19_021DBBA0(UnkStruct_ov19_021DBA9C *param0)
 
 void ov19_021DBBA8(UnkStruct_ov19_021DBA9C *param0, u32 param1, u32 param2, NNS_G2D_VRAM_TYPE param3, NNSG2dImageProxy *param4)
 {
-    const PCBoxes *v0;
-    BoxPokemon *v1;
-    u32 v2, v3, v4, v5;
-    u8 v6, v7;
+    const PCBoxes *pcBoxes;
+    BoxPokemon *boxMon;
+    u32 v2, v3, v4, species;
+    u8 color, v7;
     int v8;
 
-    v0 = ov19_021D5E90(param0->unk_0C);
-    v8 = sub_02079AA8(v0, param1);
+    pcBoxes = ov19_021D5E90(param0->unk_0C);
+    v8 = sub_02079AA8(pcBoxes, param1);
 
     if (v8 >= (16 + 8)) {
         v8 -= 8;
     }
 
-    v6 = 13 * 0x10 + v8;
-    Bitmap_FillRect8bpp(&(param0->unk_3C), 9, 10, 14, 12, v6);
+    color = 13 * 0x10 + v8;
+    Bitmap_FillRect8bpp(&(param0->unk_3C), 9, 10, 14, 12, color);
 
     for (v3 = 0, v4 = 0; v3 < 5; v3++) {
         for (v2 = 0; v2 < 6; v2++) {
-            v1 = sub_02079C9C(v0, param1, v4++);
-            v7 = BoxPokemon_EnterDecryptionContext(v1);
-            v5 = BoxPokemon_GetValue(v1, MON_DATA_SPECIES, NULL);
+            boxMon = sub_02079C9C(pcBoxes, param1, v4++);
+            v7 = BoxPokemon_EnterDecryptionContext(boxMon);
+            species = BoxPokemon_GetValue(boxMon, MON_DATA_SPECIES, NULL);
 
-            if (v5) {
-                if (BoxPokemon_GetValue(v1, MON_DATA_IS_EGG, NULL) == 0) {
-                    u16 v9 = BoxPokemon_GetValue(v1, MON_DATA_FORM, NULL);
+            if (species) {
+                if (BoxPokemon_GetValue(boxMon, MON_DATA_IS_EGG, NULL) == FALSE) {
+                    u16 form = BoxPokemon_GetValue(boxMon, MON_DATA_FORM, NULL);
 
-                    v6 = SpeciesData_GetFormValue(v5, v9, SPECIES_DATA_BODY_COLOR);
+                    color = SpeciesData_GetFormValue(species, form, SPECIES_DATA_BODY_COLOR);
                 } else {
-                    v6 = (v5 != SPECIES_MANAPHY) ? 8 : 1;
+                    color = (species != SPECIES_MANAPHY) ? MON_COLOR_WHITE : MON_COLOR_BLUE;
                 }
 
                 {
@@ -272,13 +273,13 @@ void ov19_021DBBA8(UnkStruct_ov19_021DBA9C *param0, u32 param1, u32 param2, NNS_
                         0x9,
                     };
 
-                    v6 = 14 * 0x10 + v10[v6];
+                    color = 14 * 0x10 + v10[color];
                 }
 
-                Bitmap_FillRect8bpp(&(param0->unk_3C), 10 + v2 * 2, 11 + v3 * 2, 2, 2, v6);
+                Bitmap_FillRect8bpp(&(param0->unk_3C), 10 + v2 * 2, 11 + v3 * 2, 2, 2, color);
             }
 
-            BoxPokemon_ExitDecryptionContext(v1, v7);
+            BoxPokemon_ExitDecryptionContext(boxMon, v7);
         }
     }
 
diff --git a/src/overlay021/ov21_021DE668.c b/src/overlay021/ov21_021DE668.c
index b560d7f9d0..3674f021ef 100644
--- a/src/overlay021/ov21_021DE668.c
+++ b/src/overlay021/ov21_021DE668.c
@@ -629,13 +629,13 @@ static void ov21_021DF098(UnkStruct_ov21_021DF374 *param0, UnkStruct_ov21_021DE7
     CellActorInitParams v1;
     UnkStruct_ov21_021D13FC *v2 = param1->unk_00;
     int species = PokedexSort_CurrentSpecies(param2->unk_04);
-    int v4, v5;
+    int type1, type2;
     int v6 = PokedexSort_DefaultForm(param2->unk_04, species);
 
-    v4 = SpeciesData_GetFormValue(species, v6, 6);
-    v5 = SpeciesData_GetFormValue(species, v6, 7);
-    v4 = ov21_021DF180(v4);
-    v5 = ov21_021DF180(v5);
+    type1 = SpeciesData_GetFormValue(species, v6, SPECIES_DATA_TYPE_1);
+    type2 = SpeciesData_GetFormValue(species, v6, SPECIES_DATA_TYPE_2);
+    type1 = ov21_021DF180(type1);
+    type2 = ov21_021DF180(type2);
 
     sub_020093B4(&v0, 90 + 4000, 13 + 4000, 88 + 4000, 89 + 4000, 0xffffffff, 0xffffffff, 0, 0, v2->unk_13C[0], v2->unk_13C[1], v2->unk_13C[2], v2->unk_13C[3], NULL, NULL);
 
@@ -649,13 +649,13 @@ static void ov21_021DF098(UnkStruct_ov21_021DF374 *param0, UnkStruct_ov21_021DE7
 
     param0->unk_00[1] = CellActorCollection_Add(&v1);
 
-    CellActor_SetAnim(param0->unk_00[1], 0 + v4);
+    CellActor_SetAnim(param0->unk_00[1], 0 + type1);
 
-    if (v4 != v5) {
+    if (type1 != type2) {
         v1.position.x = (220 * FX32_ONE);
         v1.position.y = (72 * FX32_ONE);
         param0->unk_00[2] = CellActorCollection_Add(&v1);
-        CellActor_SetAnim(param0->unk_00[2], 0 + v5);
+        CellActor_SetAnim(param0->unk_00[2], 0 + type2);
     } else {
         param0->unk_00[2] = NULL;
     }
diff --git a/src/overlay021/ov21_021DF734.c b/src/overlay021/ov21_021DF734.c
index a04114f531..1ced811bf8 100644
--- a/src/overlay021/ov21_021DF734.c
+++ b/src/overlay021/ov21_021DF734.c
@@ -798,7 +798,7 @@ static int ov21_021E02F0(int param0, const UnkStruct_ov21_021DF844 *param1)
     int v0;
     int v1;
 
-    v0 = SpeciesData_GetSpeciesValue(param0, 18);
+    v0 = SpeciesData_GetSpeciesValue(param0, SPECIES_DATA_GENDER_RATIO);
 
     if (v0 == 0) {
         return 1;
diff --git a/src/overlay021/ov21_021E8D48.c b/src/overlay021/ov21_021E8D48.c
index a5aba54ba6..15f6be844f 100644
--- a/src/overlay021/ov21_021E8D48.c
+++ b/src/overlay021/ov21_021E8D48.c
@@ -590,12 +590,12 @@ static void ov21_021E95F8(UnkStruct_ov21_021E968C *param0, CellActorCollection *
 {
     CellActorInitParams v0;
     CellActorResourceData v1;
-    int v2, v3;
+    int type1, type2;
 
-    v2 = SpeciesData_GetSpeciesValue(param4, 6);
-    v3 = SpeciesData_GetSpeciesValue(param4, 7);
-    v2 = ov21_021DF180(v2);
-    v3 = ov21_021DF180(v3);
+    type1 = SpeciesData_GetSpeciesValue(param4, SPECIES_DATA_TYPE_1);
+    type2 = SpeciesData_GetSpeciesValue(param4, SPECIES_DATA_TYPE_2);
+    type1 = ov21_021DF180(type1);
+    type2 = ov21_021DF180(type2);
 
     ov21_021E93F8(param0->unk_08, param2, &v1, 2);
 
@@ -609,13 +609,13 @@ static void ov21_021E95F8(UnkStruct_ov21_021E968C *param0, CellActorCollection *
 
     param0->unk_00[0] = CellActorCollection_Add(&v0);
 
-    CellActor_SetAnim(param0->unk_00[0], 0 + v2);
+    CellActor_SetAnim(param0->unk_00[0], 0 + type1);
 
-    if (v2 != v3) {
+    if (type1 != type2) {
         v0.position.x = (220 * FX32_ONE);
         v0.position.y = (72 * FX32_ONE);
         param0->unk_00[1] = CellActorCollection_Add(&v0);
-        CellActor_SetAnim(param0->unk_00[1], 0 + v3);
+        CellActor_SetAnim(param0->unk_00[1], 0 + type2);
     } else {
         param0->unk_00[1] = NULL;
     }
diff --git a/src/overlay094/ov94_0223E46C.c b/src/overlay094/ov94_0223E46C.c
index d19d56b820..27e284b07f 100644
--- a/src/overlay094/ov94_0223E46C.c
+++ b/src/overlay094/ov94_0223E46C.c
@@ -419,7 +419,7 @@ static int ov94_0223EA84(UnkStruct_ov94_0223FD4C *param0)
             break;
         case 1:
             if (param0->unk_B7A.unk_00 != 0) {
-                param0->unk_10E4->unk_20 = SpeciesData_GetSpeciesValue(param0->unk_B7A.unk_00, 18);
+                param0->unk_10E4->unk_20 = SpeciesData_GetSpeciesValue(param0->unk_B7A.unk_00, SPECIES_DATA_GENDER_RATIO);
 
                 if (ov94_02241B80(&param0->unk_B7A, param0->unk_10E4->unk_20)) {
                     Sound_PlayEffect(1500);
@@ -834,7 +834,7 @@ static int ov94_0223F2B0(UnkStruct_ov94_0223FD4C *param0)
         Window_FillTilemap(&param0->unk_FCC[1], 0x0);
 
         ov94_02242158(&param0->unk_FCC[1], param0->unk_B94, v0, 0, 0, TEXT_COLOR(1, 2, 0));
-        param0->unk_10E4->unk_20 = SpeciesData_GetSpeciesValue(v0, 18);
+        param0->unk_10E4->unk_20 = SpeciesData_GetSpeciesValue(v0, SPECIES_DATA_GENDER_RATIO);
         ov94_02242AC4(&param0->unk_111C, param0->unk_10E4->unk_06 + param0->unk_10E4->unk_04, param0->unk_10E4->unk_0A, param0->unk_10E4->unk_08);
 
         if (ov94_02241B80(&param0->unk_B7A, param0->unk_10E4->unk_20)) {
diff --git a/src/overlay094/ov94_022414B8.c b/src/overlay094/ov94_022414B8.c
index b452fee576..0a43f57db1 100644
--- a/src/overlay094/ov94_022414B8.c
+++ b/src/overlay094/ov94_022414B8.c
@@ -5,6 +5,7 @@
 #include <string.h>
 
 #include "constants/species.h"
+#include "consts/pokemon.h"
 
 #include "struct_decls/pokedexdata_decl.h"
 
@@ -640,7 +641,7 @@ static int ov94_02241BAC(UnkStruct_ov94_0223FD4C *param0)
         Window_Remove(&param0->unk_F9C[1]);
         param0->unk_B74.unk_00 = v0;
         Sound_PlayEffect(1500);
-        param0->unk_10E4->unk_20 = SpeciesData_GetSpeciesValue(v0, 18);
+        param0->unk_10E4->unk_20 = SpeciesData_GetSpeciesValue(v0, SPECIES_DATA_GENDER_RATIO);
 
         if (ov94_02241B80(&param0->unk_B74, param0->unk_10E4->unk_20)) {
             param0->unk_2C = 10;
diff --git a/src/overlay097/ov97_02236380.c b/src/overlay097/ov97_02236380.c
index defb770aa1..625a4ba22b 100644
--- a/src/overlay097/ov97_02236380.c
+++ b/src/overlay097/ov97_02236380.c
@@ -1320,33 +1320,33 @@ u32 ov97_02236E00(BoxPokemonGBA *param0)
     return Pokemon_GetSpeciesLevelAt(v0, v1);
 }
 
-static int ov97_02236E28(BoxPokemonGBA *param0, BoxPokemon *param1)
+static int ov97_02236E28(BoxPokemonGBA *boxMonGBA, BoxPokemon *boxMon)
 {
     int v0;
-    int v1;
-    u16 v2;
+    int ability;
+    u16 species;
     int v3;
 
-    v2 = BoxPokemon_GetValue(param1, MON_DATA_SPECIES, NULL);
-    v3 = GetGBABoxMonData(param0, 46, NULL);
-    v1 = SpeciesData_GetSpeciesValue(v2, 25);
+    species = BoxPokemon_GetValue(boxMon, MON_DATA_SPECIES, NULL);
+    v3 = GetGBABoxMonData(boxMonGBA, 46, NULL);
+    ability = SpeciesData_GetSpeciesValue(species, SPECIES_DATA_ABILITY_2);
 
-    if (v1) {
+    if (ability) {
         for (v0 = 0; v0 < (sizeof(Unk_ov97_0223ECA0) / 2); v0++) {
-            if (Unk_ov97_0223ECA0[v0] == v2) {
-                v1 = SpeciesData_GetSpeciesValue(v2, 24);
+            if (Unk_ov97_0223ECA0[v0] == species) {
+                ability = SpeciesData_GetSpeciesValue(species, SPECIES_DATA_ABILITY_1);
                 break;
             }
         }
 
         if ((v0 == (sizeof(Unk_ov97_0223ECA0) / 2)) && ((v3 & 1) == 0)) {
-            v1 = SpeciesData_GetSpeciesValue(v2, 24);
+            ability = SpeciesData_GetSpeciesValue(species, SPECIES_DATA_ABILITY_1);
         }
     } else {
-        v1 = SpeciesData_GetSpeciesValue(v2, 24);
+        ability = SpeciesData_GetSpeciesValue(species, SPECIES_DATA_ABILITY_1);
     }
 
-    return v1;
+    return ability;
 }
 
 void BoxMonGBAToBoxMon(BoxPokemonGBA *param0, BoxPokemon *param1)
diff --git a/src/overlay104/ov104_0222DCE0.c b/src/overlay104/ov104_0222DCE0.c
index 410f102510..b78f951518 100644
--- a/src/overlay104/ov104_0222DCE0.c
+++ b/src/overlay104/ov104_0222DCE0.c
@@ -3,6 +3,8 @@
 #include <nitro.h>
 #include <string.h>
 
+#include "consts/pokemon.h"
+
 #include "struct_decls/struct_0202C878_decl.h"
 #include "struct_defs/sentence.h"
 #include "struct_defs/struct_0204B184.h"
@@ -230,16 +232,16 @@ u32 ov104_0222DD6C(UnkStruct_ov104_0223A348_sub2 *param0, u16 param1, u32 param2
     param0->unk_1E_val2 = 0;
     param0->unk_1F = gGameLanguage;
 
-    v0 = SpeciesData_GetSpeciesValue(param0->unk_00_val1_0, 25);
+    v0 = SpeciesData_GetSpeciesValue(param0->unk_00_val1_0, SPECIES_DATA_ABILITY_2);
 
     if (v0) {
         if (param0->unk_10 & 1) {
             param0->unk_20 = v0;
         } else {
-            param0->unk_20 = SpeciesData_GetSpeciesValue(param0->unk_00_val1_0, 24);
+            param0->unk_20 = SpeciesData_GetSpeciesValue(param0->unk_00_val1_0, SPECIES_DATA_ABILITY_1);
         }
     } else {
-        param0->unk_20 = SpeciesData_GetSpeciesValue(param0->unk_00_val1_0, 24);
+        param0->unk_20 = SpeciesData_GetSpeciesValue(param0->unk_00_val1_0, SPECIES_DATA_ABILITY_1);
     }
 
     param0->unk_21 = v3;
diff --git a/src/overlay104/ov104_0223A0C4.c b/src/overlay104/ov104_0223A0C4.c
index d3d2665fb4..1e39d8e615 100644
--- a/src/overlay104/ov104_0223A0C4.c
+++ b/src/overlay104/ov104_0223A0C4.c
@@ -4,6 +4,7 @@
 #include <string.h>
 
 #include "consts/battle.h"
+#include "consts/pokemon.h"
 
 #include "struct_defs/struct_0202D764.h"
 #include "struct_defs/struct_0204AFC4.h"
@@ -883,16 +884,16 @@ static u32 ov104_0223A3A8(UnkStruct_0204AFC4 *param0, UnkStruct_ov104_0223A348_s
     param1->unk_1E_val2 = 0;
     param1->unk_1F = gGameLanguage;
 
-    v0 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, 25);
+    v0 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, SPECIES_DATA_ABILITY_2);
 
     if (v0) {
         if (param1->unk_10 & 1) {
             param1->unk_20 = v0;
         } else {
-            param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, 24);
+            param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, SPECIES_DATA_ABILITY_1);
         }
     } else {
-        param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, 24);
+        param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, SPECIES_DATA_ABILITY_1);
     }
 
     param1->unk_21 = v3;
diff --git a/src/unk_0204AEE8.c b/src/unk_0204AEE8.c
index 9fc144727b..6742bfb84a 100644
--- a/src/unk_0204AEE8.c
+++ b/src/unk_0204AEE8.c
@@ -3,6 +3,8 @@
 #include <nitro.h>
 #include <string.h>
 
+#include "consts/pokemon.h"
+
 #include "struct_decls/pokedexdata_decl.h"
 #include "struct_defs/struct_0204AFC4.h"
 #include "struct_defs/struct_0204B184.h"
@@ -378,16 +380,16 @@ static u32 sub_0204B1E8(UnkStruct_0204AFC4 *param0, UnkStruct_ov104_0223A348_sub
     param1->unk_1E_val2 = 0;
     param1->unk_1F = gGameLanguage;
 
-    v0 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, 25);
+    v0 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, SPECIES_DATA_ABILITY_2);
 
     if (v0) {
         if (param1->unk_10 & 1) {
             param1->unk_20 = v0;
         } else {
-            param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, 24);
+            param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, SPECIES_DATA_ABILITY_1);
         }
     } else {
-        param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, 24);
+        param1->unk_20 = SpeciesData_GetSpeciesValue(param1->unk_00_val1_0, SPECIES_DATA_ABILITY_1);
     }
 
     param1->unk_21 = v3;