diff --git a/include/battle.h b/include/battle.h
index 6d3516d928..c32c03fc55 100644
--- a/include/battle.h
+++ b/include/battle.h
@@ -1010,7 +1010,6 @@ extern u8 gBattleTextBuff2[TEXT_BUFF_ARRAY_COUNT];
 extern u8 gBattleTextBuff3[TEXT_BUFF_ARRAY_COUNT + 13]; //to handle stupidly large z move names
 extern u32 gBattleTypeFlags;
 extern u8 gBattleTerrain;
-extern u32 gUnusedFirstBattleVar1;
 extern u8 *gBattleAnimBgTileBuffer;
 extern u8 *gBattleAnimBgTilemapBuffer;
 extern u32 gBattleControllerExecFlags;
@@ -1057,7 +1056,6 @@ extern u16 gChosenMoveByBattler[MAX_BATTLERS_COUNT];
 extern u16 gMoveResultFlags;
 extern u32 gHitMarker;
 extern u8 gBideTarget[MAX_BATTLERS_COUNT];
-extern u8 gUnusedFirstBattleVar2;
 extern u32 gSideStatuses[NUM_BATTLE_SIDES];
 extern struct SideTimer gSideTimers[NUM_BATTLE_SIDES];
 extern u32 gStatuses3[MAX_BATTLERS_COUNT];
@@ -1089,8 +1087,6 @@ extern bool8 gTransformedShininess[MAX_BATTLERS_COUNT];
 extern u8 gPlayerDpadHoldFrames;
 extern struct BattleSpriteData *gBattleSpritesDataPtr;
 extern struct MonSpritesGfx *gMonSpritesGfxPtr;
-extern struct BattleHealthboxInfo *gBattleControllerOpponentHealthboxData;
-extern struct BattleHealthboxInfo *gBattleControllerOpponentFlankHealthboxData;
 extern u16 gBattleMovePower;
 extern u16 gMoveToLearn;
 extern u32 gFieldStatuses;
diff --git a/src/battle_anim_utility_funcs.c b/src/battle_anim_utility_funcs.c
index 491ca77a96..a8de8eddd9 100644
--- a/src/battle_anim_utility_funcs.c
+++ b/src/battle_anim_utility_funcs.c
@@ -40,11 +40,6 @@ static void AnimTask_WaitAndRestoreVisibility(u8);
 
 static const u16 sCurseLinesPalette[] = { RGB_WHITE };
 
-// These belong in battle_intro.c, but putting them there causes 2 bytes of alignment padding
-// between the two .rodata segments. Perhaps battle_intro.c actually belongs in this file, too.
-const u8 gBattleAnimBgCntSet[] = {REG_OFFSET_BG0CNT, REG_OFFSET_BG1CNT, REG_OFFSET_BG2CNT, REG_OFFSET_BG3CNT};
-const u8 gBattleAnimBgCntGet[] = {REG_OFFSET_BG0CNT, REG_OFFSET_BG1CNT, REG_OFFSET_BG2CNT, REG_OFFSET_BG3CNT};
-
 void AnimTask_BlendBattleAnimPal(u8 taskId)
 {
     u32 selectedPalettes = UnpackSelectedBattlePalettes(gBattleAnimArgs[0]);
diff --git a/src/battle_bg.c b/src/battle_bg.c
index 8f647f8d59..0f802d52de 100644
--- a/src/battle_bg.c
+++ b/src/battle_bg.c
@@ -29,7 +29,6 @@
 #include "constants/battle_partner.h"
 
 // .rodata
-static const u16 sUnrefArray[] = {0x0300, 0x0000}; //OamData?
 
 static const struct OamData sVsLetter_V_OamData =
 {
diff --git a/src/battle_controller_opponent.c b/src/battle_controller_opponent.c
index 395ad81ad9..97b0a061bb 100644
--- a/src/battle_controller_opponent.c
+++ b/src/battle_controller_opponent.c
@@ -170,9 +170,6 @@ static void Intro_WaitForShinyAnimAndHealthbox(u32 battler)
         twoMons = TRUE;
     }
 
-    gBattleControllerOpponentHealthboxData = &gBattleSpritesDataPtr->healthBoxesData[battler];
-    gBattleControllerOpponentFlankHealthboxData = &gBattleSpritesDataPtr->healthBoxesData[BATTLE_PARTNER(battler)];
-
     if (healthboxAnimDone)
     {
         if (twoMons == TRUE)
diff --git a/src/battle_controllers.c b/src/battle_controllers.c
index a7d9610dac..b2ae3039df 100644
--- a/src/battle_controllers.c
+++ b/src/battle_controllers.c
@@ -83,10 +83,6 @@ void SetUpBattleVarsAndBirchZigzagoon(void)
         i = 0;
         SetMonData(&gEnemyParty[0], MON_DATA_HELD_ITEM, &i);
     }
-
-    // Below are never read
-    gUnusedFirstBattleVar1 = 0;
-    gUnusedFirstBattleVar2 = 0;
 }
 
 void InitBattleControllers(void)
diff --git a/src/battle_dome.c b/src/battle_dome.c
index 539bf12a32..0978ae4888 100644
--- a/src/battle_dome.c
+++ b/src/battle_dome.c
@@ -198,17 +198,6 @@ static const u8 sBattleStyleThresholds[NUM_BATTLE_STYLES - 1][NUM_MOVE_POINT_TYP
     [DOME_BATTLE_STYLE_UNUSED3]         = {0},
   //[DOME_BATTLE_STYLE_UNUSED4]         = {0}, // Excluded here, presumably was meant to be a style just for Dome Ace Tucker
 };
-static const u8 sUnusedArray[] =
-{
-    0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    3, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 3, 0, 0, 0,
-    0, 0, 3, 0, 0, 0, 0, 0, 3, 2, 0, 0, 0, 0, 0, 2,
-    0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0,
-    0, 2, 253, 0, 0, 0, 0, 0, 253, 0, 0, 0, 0, 0, 253, 0,
-    0, 0, 0, 0, 253, 0, 0, 0, 0, 0, 253, 254, 0, 0, 0, 0,
-    0, 254, 0, 0, 0, 0, 0, 254, 0, 0, 0, 0, 0, 254, 0, 0,
-    0, 0, 0, 254, 0, 0, 0, 0, 0,
-};
 
 // 1st array is for cursor position (sprite id): cursor can be on a trainer info button, a match info button, or the exit/cancel button
 // 2nd array is for round count. For some reason this array contains an inaccessible Round 5 which is identical to Round 4
diff --git a/src/battle_intro.c b/src/battle_intro.c
index 5bb6ce9648..858a32b13b 100644
--- a/src/battle_intro.c
+++ b/src/battle_intro.c
@@ -12,15 +12,14 @@
 #include "constants/battle_partner.h"
 #include "constants/trainers.h"
 
-extern const u8 gBattleAnimBgCntSet[];
-extern const u8 gBattleAnimBgCntGet[];
-
 static void BattleIntroSlide1(u8);
 static void BattleIntroSlide2(u8);
 static void BattleIntroSlide3(u8);
 static void BattleIntroSlideLink(u8);
 static void BattleIntroSlidePartner(u8);
 
+static const u8 sBattleAnimBgCnts[] = {REG_OFFSET_BG0CNT, REG_OFFSET_BG1CNT, REG_OFFSET_BG2CNT, REG_OFFSET_BG3CNT};
+
 static const TaskFunc sBattleIntroSlideFuncs[] =
 {
     [BATTLE_TERRAIN_GRASS]      = BattleIntroSlide1,
@@ -39,7 +38,7 @@ void SetAnimBgAttribute(u8 bgId, u8 attributeId, u8 value)
 {
     if (bgId < 4)
     {
-        u32 bgCnt = GetGpuReg(gBattleAnimBgCntSet[bgId]);
+        u32 bgCnt = GetGpuReg(sBattleAnimBgCnts[bgId]);
         switch (attributeId)
         {
         case BG_ANIM_SCREEN_SIZE:
@@ -65,7 +64,7 @@ void SetAnimBgAttribute(u8 bgId, u8 attributeId, u8 value)
             break;
         }
 
-        SetGpuReg(gBattleAnimBgCntSet[bgId], bgCnt);
+        SetGpuReg(sBattleAnimBgCnts[bgId], bgCnt);
     }
 }
 
@@ -75,7 +74,7 @@ int GetAnimBgAttribute(u8 bgId, u8 attributeId)
 
     if (bgId < 4)
     {
-        bgCnt = GetGpuReg(gBattleAnimBgCntGet[bgId]);
+        bgCnt = GetGpuReg(sBattleAnimBgCnts[bgId]);
         switch (attributeId)
         {
         case BG_ANIM_SCREEN_SIZE:
diff --git a/src/battle_main.c b/src/battle_main.c
index b4430100d2..c592eb6688 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -137,7 +137,6 @@ EWRAM_DATA u8 gBattleTextBuff2[TEXT_BUFF_ARRAY_COUNT] = {0};
 EWRAM_DATA u8 gBattleTextBuff3[TEXT_BUFF_ARRAY_COUNT + 13] = {0};   // expanded for stupidly long z move names
 EWRAM_DATA u32 gBattleTypeFlags = 0;
 EWRAM_DATA u8 gBattleTerrain = 0;
-EWRAM_DATA u32 gUnusedFirstBattleVar1 = 0; // Never read
 EWRAM_DATA struct MultiPartnerMenuPokemon gMultiPartnerParty[MULTI_PARTY_SIZE] = {0};
 EWRAM_DATA static struct MultiPartnerMenuPokemon* sMultiPartnerPartyBuffer = NULL;
 EWRAM_DATA u8 *gBattleAnimBgTileBuffer = NULL;
@@ -186,7 +185,6 @@ EWRAM_DATA u16 gChosenMoveByBattler[MAX_BATTLERS_COUNT] = {0};
 EWRAM_DATA u16 gMoveResultFlags = 0;
 EWRAM_DATA u32 gHitMarker = 0;
 EWRAM_DATA u8 gBideTarget[MAX_BATTLERS_COUNT] = {0};
-EWRAM_DATA u8 gUnusedFirstBattleVar2 = 0; // Never read
 EWRAM_DATA u32 gSideStatuses[NUM_BATTLE_SIDES] = {0};
 EWRAM_DATA struct SideTimer gSideTimers[NUM_BATTLE_SIDES] = {0};
 EWRAM_DATA u32 gStatuses3[MAX_BATTLERS_COUNT] = {0};
@@ -218,8 +216,6 @@ EWRAM_DATA bool8 gTransformedShininess[MAX_BATTLERS_COUNT] = {0};
 EWRAM_DATA u8 gPlayerDpadHoldFrames = 0;
 EWRAM_DATA struct BattleSpriteData *gBattleSpritesDataPtr = NULL;
 EWRAM_DATA struct MonSpritesGfx *gMonSpritesGfxPtr = NULL;
-EWRAM_DATA struct BattleHealthboxInfo *gBattleControllerOpponentHealthboxData = NULL; // Never read
-EWRAM_DATA struct BattleHealthboxInfo *gBattleControllerOpponentFlankHealthboxData = NULL; // Never read
 EWRAM_DATA u16 gBattleMovePower = 0;
 EWRAM_DATA u16 gMoveToLearn = 0;
 EWRAM_DATA u32 gFieldStatuses = 0;
diff --git a/src/battle_transition_frontier.c b/src/battle_transition_frontier.c
index 417bd96d63..3e40129fa5 100644
--- a/src/battle_transition_frontier.c
+++ b/src/battle_transition_frontier.c
@@ -50,9 +50,6 @@ static const u32 sLogoCenter_Tilemap[] = INCBIN_U32("graphics/battle_transitions
 static const u32 sLogoCircles_Gfx[] = INCBIN_U32("graphics/battle_transitions/frontier_logo_circles.4bpp.lz");
 static const u16 sLogo_Pal[] = INCBIN_U16("graphics/battle_transitions/frontier_logo_circles.gbapal");
 
-// Unused Empty data.
-static const u8 sFiller[0x1C0] = {0};
-
 static const struct OamData sOamData_LogoCircles =
 {
     .y = 0,
diff --git a/src/data/battle_anim.h b/src/data/battle_anim.h
index 239e655918..77b61584ca 100644
--- a/src/data/battle_anim.h
+++ b/src/data/battle_anim.h
@@ -12,7 +12,6 @@ const struct OamData gOamData_AffineOff_ObjNormal_8x8 =
     .paletteNum = 0,
 };
 
-
 const struct OamData gOamData_AffineOff_ObjNormal_16x16 =
 {
     .y = 0,