diff --git a/include/graphics.h b/include/graphics.h
index e0109f8b20..b249888cb0 100644
--- a/include/graphics.h
+++ b/include/graphics.h
@@ -306,7 +306,7 @@ extern const u16 gPokedexSearchMenu_Pal[];
 extern const u32 gBerryCheck_Gfx[];
 extern const u32 gBerryCheck_Pal[];
 extern const u32 gBerryTag_Gfx[];
-extern const u32 gBerryTag_Pal[];
+extern const u32 gBerryTag_Tilemap[];
 
 // rayquaza scene gfx
 extern const u32 gRaySceneDuoFight_Groudon_Gfx[];
diff --git a/src/berry_tag_screen.c b/src/berry_tag_screen.c
index 1f9d403ea5..b47366a971 100644
--- a/src/berry_tag_screen.c
+++ b/src/berry_tag_screen.c
@@ -340,7 +340,7 @@ static bool8 LoadBerryTagGfx(void)
         }
         break;
     case 2:
-        LZDecompressWram(gBerryTag_Pal, sBerryTag->tilemapBuffers[2]);
+        LZDecompressWram(gBerryTag_Tilemap, sBerryTag->tilemapBuffers[2]);
         sBerryTag->gfxState++;
         break;
     case 3:
diff --git a/src/data/battle_frontier/apprentice.h b/src/data/battle_frontier/apprentice.h
index ef0a77bf11..f517b26c4c 100644
--- a/src/data/battle_frontier/apprentice.h
+++ b/src/data/battle_frontier/apprentice.h
@@ -298,7 +298,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
 {
     {
         .name = {_("サダヒロ"), _("ALANN"), _("ALAIN"), _("ADELFO"), _("CLAUS"), _("TEO")},
-        .otId = 0xBDC9,
+        .otId = 48585,
         .facilityClass = FACILITY_CLASS_BUG_CATCHER,
         .species = {SPECIES_BEAUTIFLY, SPECIES_DUSTOX, SPECIES_ILLUMISE, SPECIES_SHIFTRY, SPECIES_BRELOOM, SPECIES_NINJASK, SPECIES_SHEDINJA, SPECIES_PINSIR, SPECIES_HERACROSS, SPECIES_VOLBEAT},
         .id = 0,
@@ -306,7 +306,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("ヒロオ"), _("LIONEL"), _("LIONEL"), _("CAIO"), _("LUDWIG"), _("LEO")},
-        .otId = 0xCF09,
+        .otId = 53001,
         .facilityClass = FACILITY_CLASS_YOUNGSTER,
         .species = {SPECIES_SWELLOW, SPECIES_SWALOT, SPECIES_SHUCKLE, SPECIES_MANECTRIC, SPECIES_TORKOAL, SPECIES_HARIYAMA, SPECIES_MIGHTYENA, SPECIES_LUDICOLO, SPECIES_CRAWDAUNT, SPECIES_WHISCASH},
         .id = 1,
@@ -314,7 +314,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("ケイジ"), _("SONNY"), _("HERVE"), _("FEDRO"), _("WENZEL"), _("SANTI")},
-        .otId = 0x2E34,
+        .otId = 11828,
         .facilityClass = FACILITY_CLASS_SCHOOL_KID_M,
         .species = {SPECIES_LINOONE, SPECIES_MIGHTYENA, SPECIES_WHISCASH, SPECIES_ZANGOOSE, SPECIES_SEVIPER, SPECIES_NINETALES, SPECIES_KECLEON, SPECIES_SHUCKLE, SPECIES_MANECTRIC, SPECIES_MACHAMP},
         .id = 2,
@@ -322,7 +322,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("ユラ"), _("LAYLA"), _("LAYLA"), _("ASTRID"), _("SONJA"), _("LOLA")},
-        .otId = 0x84EF,
+        .otId = 34031,
         .facilityClass = FACILITY_CLASS_LASS,
         .species = {SPECIES_SWALOT, SPECIES_XATU, SPECIES_ALTARIA, SPECIES_GOLDUCK, SPECIES_FLYGON, SPECIES_ALAKAZAM, SPECIES_GARDEVOIR, SPECIES_WAILORD, SPECIES_GRUMPIG, SPECIES_MIGHTYENA},
         .id = 3,
@@ -330,7 +330,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("ヨウカ"), _("MACY"), _("AMELIE"), _("CLEO"), _("MARIA"), _("ELISA")},
-        .otId = 0x1E43,
+        .otId = 7747,
         .facilityClass = FACILITY_CLASS_SCHOOL_KID_F,
         .species = {SPECIES_WIGGLYTUFF, SPECIES_LINOONE, SPECIES_KINGDRA, SPECIES_DELCATTY, SPECIES_RAICHU, SPECIES_FEAROW, SPECIES_STARMIE, SPECIES_MEDICHAM, SPECIES_SHIFTRY, SPECIES_BEAUTIFLY},
         .id = 4,
@@ -338,7 +338,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("ヤスシ"), _("DONTE"), _("BRAHIM"), _("GLAUCO"), _("JOSEF"), _("ROQUE")},
-        .otId = 0x379F,
+        .otId = 14239,
         .facilityClass = FACILITY_CLASS_RUNNING_TRIATHLETE_M,
         .species = {SPECIES_STARMIE, SPECIES_DODRIO, SPECIES_AGGRON, SPECIES_MAGNETON, SPECIES_MACHAMP, SPECIES_ARMALDO, SPECIES_HERACROSS, SPECIES_NOSEPASS, SPECIES_EXPLOUD, SPECIES_MIGHTYENA},
         .id = 5,
@@ -346,7 +346,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("ミサオ"), _("AMIRA"), _("LAURE"), _("DAFNE"), _("AMELIE"), _("LARA")},
-        .otId = 0xF555,
+        .otId = 62805,
         .facilityClass = FACILITY_CLASS_RUNNING_TRIATHLETE_F,
         .species = {SPECIES_STARMIE, SPECIES_DODRIO, SPECIES_MAGNETON, SPECIES_MEDICHAM, SPECIES_MIGHTYENA, SPECIES_GLALIE, SPECIES_GOLEM, SPECIES_ELECTRODE, SPECIES_PELIPPER, SPECIES_SHARPEDO},
         .id = 6,
@@ -354,7 +354,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("カズサ"), _("KALI"), _("JODIE"), _("ILENIA"), _("KARO"), _("ELSA")},
-        .otId = 0x8D26,
+        .otId = 36134,
         .facilityClass = FACILITY_CLASS_BEAUTY,
         .species = {SPECIES_NINETALES, SPECIES_ALAKAZAM, SPECIES_SCEPTILE, SPECIES_SALAMENCE, SPECIES_GOLDUCK, SPECIES_MAWILE, SPECIES_WEEZING, SPECIES_LANTURN, SPECIES_GARDEVOIR, SPECIES_MILOTIC},
         .id = 7,
@@ -362,7 +362,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("スミレ"), _("ANNIE"), _("ANNIE"), _("IMELDA"), _("INES"), _("ROSA")},
-        .otId = 0x800C,
+        .otId = 32780,
         .facilityClass = FACILITY_CLASS_AROMA_LADY,
         .species = {SPECIES_SCEPTILE, SPECIES_VILEPLUME, SPECIES_BELLOSSOM, SPECIES_ROSELIA, SPECIES_CORSOLA, SPECIES_FLYGON, SPECIES_BRELOOM, SPECIES_MILOTIC, SPECIES_ALTARIA, SPECIES_CRADILY},
         .id = 8,
@@ -370,7 +370,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("アキノリ"), _("DILLEN"), _("RENE"), _("INDRO"), _("DETLEF"), _("PEDRO")},
-        .otId = 0x469f,
+        .otId = 18079,
         .facilityClass = FACILITY_CLASS_HIKER,
         .species = {SPECIES_SKARMORY, SPECIES_GOLEM, SPECIES_BLAZIKEN, SPECIES_CAMERUPT, SPECIES_DONPHAN, SPECIES_MUK, SPECIES_SALAMENCE, SPECIES_TROPIUS, SPECIES_SOLROCK, SPECIES_RHYDON},
         .id = 9,
@@ -378,7 +378,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("トウゾウ"), _("DALLAS"), _("BRUNO"), _("LEARCO"), _("ANSGAR"), _("MANOLO")},
-        .otId = 0x71FC,
+        .otId = 29180,
         .facilityClass = FACILITY_CLASS_FISHERMAN,
         .species = {SPECIES_SEAKING, SPECIES_STARMIE, SPECIES_GOLDUCK, SPECIES_TENTACRUEL, SPECIES_OCTILLERY, SPECIES_GOREBYSS, SPECIES_GLALIE, SPECIES_WAILORD, SPECIES_SHARPEDO, SPECIES_KINGDRA},
         .id = 10,
@@ -386,7 +386,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("セイヤ"), _("FRANK"), _("FRANK"), _("OLINDO"), _("FRANK"), _("MAURO")},
-        .otId = 0xA39E,
+        .otId = 41886,
         .facilityClass = FACILITY_CLASS_SAILOR,
         .species = {SPECIES_QUAGSIRE, SPECIES_STARMIE, SPECIES_PELIPPER, SPECIES_CRAWDAUNT, SPECIES_WAILORD, SPECIES_GYARADOS, SPECIES_SWAMPERT, SPECIES_LANTURN, SPECIES_WHISCASH, SPECIES_SHUCKLE},
         .id = 11,
@@ -394,7 +394,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("リュウジ"), _("LAMONT"), _("XAV"), _("ORFEO"), _("JÜRGEN"), _("JORGE")},
-        .otId = 0xE590,
+        .otId = 58768,
         .facilityClass = FACILITY_CLASS_GUITARIST,
         .species = {SPECIES_ABSOL, SPECIES_CROBAT, SPECIES_EXPLOUD, SPECIES_MAGNETON, SPECIES_SHARPEDO, SPECIES_MANECTRIC, SPECIES_METAGROSS, SPECIES_ELECTRODE, SPECIES_NOSEPASS, SPECIES_WEEZING},
         .id = 12,
@@ -402,7 +402,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("カツアキ"), _("TYRESE"), _("ANDY"), _("PARIDE"), _("DAVID"), _("CHICHO")},
-        .otId = 0xD018,
+        .otId = 53272,
         .facilityClass = FACILITY_CLASS_BLACK_BELT,
         .species = {SPECIES_BLAZIKEN, SPECIES_GOLEM, SPECIES_MACHAMP, SPECIES_RHYDON, SPECIES_HARIYAMA, SPECIES_AGGRON, SPECIES_MEDICHAM, SPECIES_ZANGOOSE, SPECIES_VIGOROTH, SPECIES_SLAKING},
         .id = 13,
@@ -410,7 +410,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("トシミツ"), _("DANTE"), _("DANTE"), _("RAOUL"), _("LOTHAR"), _("PABLO")},
-        .otId = 0xBC75,
+        .otId = 48245,
         .facilityClass = FACILITY_CLASS_RUIN_MANIAC,
         .species = {SPECIES_SCEPTILE, SPECIES_SANDSLASH, SPECIES_FLYGON, SPECIES_CLAYDOL, SPECIES_ARMALDO, SPECIES_CROBAT, SPECIES_CRADILY, SPECIES_SOLROCK, SPECIES_LUNATONE, SPECIES_GOLEM},
         .id = 14,
@@ -418,7 +418,7 @@ const struct ApprenticeTrainer gApprentices[NUM_APPRENTICES] =
     },
     {
         .name = {_("ローウェン"), _("ARTURO"), _("ARTURO"), _("ROMOLO"), _("BRIAN"), _("ARTURO")},
-        .otId = 0xFA02,
+        .otId = 64002,
         .facilityClass = FACILITY_CLASS_GENTLEMAN,
         .species = {SPECIES_ABSOL, SPECIES_MIGHTYENA, SPECIES_ALAKAZAM, SPECIES_BANETTE, SPECIES_NINETALES, SPECIES_CLAYDOL, SPECIES_MUK, SPECIES_SALAMENCE, SPECIES_WALREIN, SPECIES_DUSCLOPS},
         .id = 15,
diff --git a/src/data/graphics/berries.h b/src/data/graphics/berries.h
index 36658427f9..2bffbbafe8 100644
--- a/src/data/graphics/berries.h
+++ b/src/data/graphics/berries.h
@@ -2,7 +2,7 @@ const u32 gBerryCheck_Gfx[] = INCBIN_U32("graphics/bag/check_berry.4bpp.lz");
 const u32 gBerryCheck_Pal[] = INCBIN_U32("graphics/bag/check_berry.gbapal.lz");
 
 const u32 gBerryTag_Gfx[] = INCBIN_U32("graphics/bag/berry_tag.bin.lz");
-const u32 gBerryTag_Pal[] = INCBIN_U32("graphics/bag/berry_tag_title.bin.lz");
+const u32 gBerryTag_Tilemap[] = INCBIN_U32("graphics/bag/berry_tag_title.bin.lz");
 
 const u32 gBerryCheckCircle_Gfx[] = INCBIN_U32("graphics/bag/check_berry_circle.4bpp.lz");
 
diff --git a/src/data/union_room.h b/src/data/union_room.h
index ada118b96a..f39ab83de0 100644
--- a/src/data/union_room.h
+++ b/src/data/union_room.h
@@ -451,7 +451,7 @@ ALIGNED(4) static const u8 sText_NobodyHasRegistered[] = _("Nobody has registere
 ALIGNED(4) static const u8 sText_ChooseRequestedMonType[] = _("Please choose the type of POKéMON\nthat you would like in the trade.\n");
 ALIGNED(4) static const u8 sText_WhichMonWillYouOffer[] = _("Which of your party POKéMON will\nyou offer in trade?\p");
 ALIGNED(4) static const u8 sText_RegistrationCanceled[] = _("Registration has been canceled.\p");
-ALIGNED(4) static const u8 sText_RegistraionCompleted[] = _("Registration has been completed.\p");
+ALIGNED(4) static const u8 sText_RegistrationCompleted[] = _("Registration has been completed.\p");
 ALIGNED(4) static const u8 sText_TradeCanceled[] = _("The trade has been canceled.\p");
 ALIGNED(4) static const u8 sText_CancelRegistrationOfMon[] = _("Cancel the registration of your\nLv. {STR_VAR_2} {STR_VAR_1}?");
 ALIGNED(4) static const u8 sText_CancelRegistrationOfEgg[] = _("Cancel the registration of your\nEGG?");
diff --git a/src/decoration.c b/src/decoration.c
index 2b8973c815..c07bf30573 100644
--- a/src/decoration.c
+++ b/src/decoration.c
@@ -1932,7 +1932,7 @@ static void ClearPlaceDecorationGraphicsDataBuffer(struct PlaceDecorationGraphic
 
 static void CopyPalette(u16 *dest, u16 pal)
 {
-    CpuFastCopy(&((u16 *)gTilesetPointer_SecretBase->palettes)[pal * 16], dest, sizeof(u16) * 16);
+    CpuFastCopy(&gTilesetPointer_SecretBase->palettes[pal], dest, PLTT_SIZE_4BPP);
 }
 
 static void CopyTile(u8 *dest, u16 tile)
@@ -1945,7 +1945,7 @@ static void CopyTile(u8 *dest, u16 tile)
     if (tile != 0)
         tile &= 0x03FF;
 
-    CpuFastCopy(&((u8 *)gTilesetPointer_SecretBase->tiles)[tile * TILE_SIZE_4BPP], buffer, TILE_SIZE_4BPP);
+    CpuFastCopy(&gTilesetPointer_SecretBase->tiles[tile * TILE_SIZE_4BPP / sizeof(u32)], buffer, TILE_SIZE_4BPP);
     switch (mode)
     {
     case 0:
@@ -1987,7 +1987,7 @@ static void SetDecorSelectionBoxTiles(struct PlaceDecorationGraphicsDataBuffer *
 
 static u16 GetMetatile(u16 tile)
 {
-    return ((u16 *)gTilesetPointer_SecretBaseRedCave->metatiles)[tile] & 0xFFF;
+    return gTilesetPointer_SecretBaseRedCave->metatiles[tile] & 0xFFF;
 }
 
 static void SetDecorSelectionMetatiles(struct PlaceDecorationGraphicsDataBuffer *data)
@@ -2058,7 +2058,7 @@ static u8 gpu_pal_decompress_alloc_tag_and_upload(struct PlaceDecorationGraphics
     SetDecorSelectionMetatiles(data);
     SetDecorSelectionBoxOamAttributes(data->decoration->shape);
     SetDecorSelectionBoxTiles(data);
-    CopyPalette(data->palette, ((u16 *)gTilesetPointer_SecretBaseRedCave->metatiles)[(data->decoration->tiles[0] * NUM_TILES_PER_METATILE) + 7] >> 12);
+    CopyPalette(data->palette, gTilesetPointer_SecretBaseRedCave->metatiles[(data->decoration->tiles[0] * NUM_TILES_PER_METATILE) + 7] >> 12);
     LoadSpritePalette(&sSpritePal_PlaceDecoration);
     return CreateSprite(&sDecorationSelectorSpriteTemplate, 0, 0, 0);
 }
@@ -2114,7 +2114,7 @@ static u8 AddDecorationIconObjectFromObjectEvent(u16 tilesTag, u16 paletteTag, u
         SetDecorSelectionMetatiles(&sPlaceDecorationGraphicsDataBuffer);
         SetDecorSelectionBoxOamAttributes(sPlaceDecorationGraphicsDataBuffer.decoration->shape);
         SetDecorSelectionBoxTiles(&sPlaceDecorationGraphicsDataBuffer);
-        CopyPalette(sPlaceDecorationGraphicsDataBuffer.palette, ((u16 *)gTilesetPointer_SecretBaseRedCave->metatiles)[(sPlaceDecorationGraphicsDataBuffer.decoration->tiles[0] * NUM_TILES_PER_METATILE) + 7] >> 12);
+        CopyPalette(sPlaceDecorationGraphicsDataBuffer.palette, gTilesetPointer_SecretBaseRedCave->metatiles[(sPlaceDecorationGraphicsDataBuffer.decoration->tiles[0] * NUM_TILES_PER_METATILE) + 7] >> 12);
         sheet.data = sPlaceDecorationGraphicsDataBuffer.image;
         sheet.size = sDecorShapeSizes[sPlaceDecorationGraphicsDataBuffer.decoration->shape] * TILE_SIZE_4BPP;
         sheet.tag = tilesTag;
diff --git a/src/graphics.c b/src/graphics.c
index b8c95be297..836af976ed 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -610,7 +610,7 @@ const u16 gBattleAnimUnused_Unknown2[] = INCBIN_U16("graphics/battle_anims/unuse
 const u16 gBattleAnimUnused_Unknown3[] = INCBIN_U16("graphics/battle_anims/unused/unknown_3.bin");
 
 const u32 gBattleAnimUnusedGfx_LineSketch2[] = INCBIN_U32("graphics/battle_anims/unused/line_sketch_2.8bpp.lz");
-const u16 gBattleAnimUnusedPal_LineSketch2[] = INCBIN_U16("graphics/battle_anims/unused/line_sketch_2.gbapal.lz");
+const u32 gBattleAnimUnusedPal_LineSketch2[] = INCBIN_U32("graphics/battle_anims/unused/line_sketch_2.gbapal.lz");
 const u32 gBattleAnimUnusedTilemap_LineSketch2[] = INCBIN_U32("graphics/battle_anims/unused/line_sketch_2.bin.lz");
 
 const u32 gBattleAnimSpriteGfx_BlueLines[] = INCBIN_U32("graphics/battle_anims/sprites/blue_lines.4bpp.lz");
diff --git a/src/script.c b/src/script.c
index 3f0a005406..96a33acd05 100644
--- a/src/script.c
+++ b/src/script.c
@@ -35,7 +35,7 @@ EWRAM_DATA u8 gMsgBoxIsCancelable = FALSE;
 
 extern ScrCmdFunc gScriptCmdTable[];
 extern ScrCmdFunc gScriptCmdTableEnd[];
-extern void *gNullScriptPtr;
+extern void * const gNullScriptPtr;
 
 void InitScriptContext(struct ScriptContext *ctx, void *cmdTable, void *cmdTableEnd)
 {
diff --git a/src/union_room.c b/src/union_room.c
index 3337cdec93..9fc2126880 100644
--- a/src/union_room.c
+++ b/src/union_room.c
@@ -3125,7 +3125,7 @@ static void Task_RunUnionRoom(u8 taskId)
         break;
     case UR_STATE_REGISTER_COMPLETE:
         SetTradeBoardRegisteredMonInfo(sUnionRoomTrade.type, sUnionRoomTrade.playerSpecies, sUnionRoomTrade.playerLevel);
-        ScheduleFieldMessageAndExit(sText_RegistraionCompleted);
+        ScheduleFieldMessageAndExit(sText_RegistrationCompleted);
         break;
     case UR_STATE_CANCEL_REGISTRATION_PROMPT:
         switch (UnionRoomHandleYesNo(&uroom->textState, FALSE))