diff --git a/include/constants/metatile_labels.h b/include/constants/metatile_labels.h
index a4eb6aecea..577ced41b9 100644
--- a/include/constants/metatile_labels.h
+++ b/include/constants/metatile_labels.h
@@ -15,6 +15,7 @@
 #define METATILE_General_TallGrass_TreeRight 0x1C7
 #define METATILE_General_Grass_TreeLeft      0x1CE
 #define METATILE_General_Grass_TreeRight     0x1CF
+#define METATILE_General_SandPit_Center      0x121
 
 // gTileset_Building
 #define METATILE_Building_PC_Off 0x004
@@ -135,5 +136,58 @@
 #define METATILE_Lavaridge_NormalGrass 0x206
 #define METATILE_Lavaridge_AshGrass    0x207
 #define METATILE_Lavaridge_LavaField   0x271
+
+// gTileset_PokemonCenter
+#define METATILE_PokemonCenter_Elevator1F_Tile0_Frame0 0x280
+#define METATILE_PokemonCenter_Elevator1F_Tile0_Frame1 0x282
+#define METATILE_PokemonCenter_Elevator1F_Tile0_Frame2 0x284
+#define METATILE_PokemonCenter_Elevator1F_Tile1_Frame0 0x281
+#define METATILE_PokemonCenter_Elevator1F_Tile1_Frame1 0x283
+#define METATILE_PokemonCenter_Elevator1F_Tile1_Frame2 0x285
+#define METATILE_PokemonCenter_Elevator1F_Tile2_Frame0 0x288
+#define METATILE_PokemonCenter_Elevator1F_Tile2_Frame1 0x28A
+#define METATILE_PokemonCenter_Elevator1F_Tile2_Frame2 0x28C
+#define METATILE_PokemonCenter_Elevator1F_Tile3_Frame0 0x289
+#define METATILE_PokemonCenter_Elevator1F_Tile3_Frame1 0x28B
+#define METATILE_PokemonCenter_Elevator1F_Tile3_Frame2 0x28D
+#define METATILE_PokemonCenter_Elevator2F_Tile0_Frame0 0x2A0
+#define METATILE_PokemonCenter_Elevator2F_Tile0_Frame1 0x2A2
+#define METATILE_PokemonCenter_Elevator2F_Tile0_Frame2 0x2A4
+#define METATILE_PokemonCenter_Elevator2F_Tile1_Frame0 0x2A1
+#define METATILE_PokemonCenter_Elevator2F_Tile1_Frame1 0x2A3
+#define METATILE_PokemonCenter_Elevator2F_Tile1_Frame2 0x2A5
+#define METATILE_PokemonCenter_Elevator2F_Tile2_Frame0 0x2A8
+#define METATILE_PokemonCenter_Elevator2F_Tile2_Frame1 0x2AA
+#define METATILE_PokemonCenter_Elevator2F_Tile2_Frame2 0x2AC
+
+// gTileset_Mauville
+#define METATILE_Mauville_DeepSand_Center 0x251
+#define METATILE_Mauville_DeepSand_BottomMid 0x259
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
 
 #endif // GUARD_METATILE_LABELS_H
diff --git a/src/fldeff_escalator.c b/src/fldeff_escalator.c
index 7ab2db4db2..10fb78ee23 100644
--- a/src/fldeff_escalator.c
+++ b/src/fldeff_escalator.c
@@ -4,6 +4,7 @@
 #include "fieldmap.h"
 #include "fldeff.h"
 #include "task.h"
+#include "constants/metatile_labels.h"
 
 static EWRAM_DATA u8 sEscalatorAnim_TaskId = 0;
 
@@ -53,13 +54,47 @@ static void sub_80E12E8(u8 taskId, const s16 *list, u16 isImpassableFlag)
     }
 }
 
-static const u16 gUnknown_08589ABA[] = {0x284, 0x282, 0x280};
-static const u16 gUnknown_08589AC0[] = {0x285, 0x283, 0x281};
-static const u16 gUnknown_08589AC6[] = {0x28C, 0x28A, 0x288};
-static const u16 gUnknown_08589ACC[] = {0x28D, 0x28B, 0x289};
-static const u16 gUnknown_08589AD2[] = {0x2A0, 0x2A2, 0x2A4};
-static const u16 gUnknown_08589AD8[] = {0x2A1, 0x2A3, 0x2A5};
-static const u16 gUnknown_08589ADE[] = {0x2A8, 0x2AA, 0x2AC};
+static const u16 sElevatorMetatiles_1F_0[] = {
+    METATILE_ID(PokemonCenter, Elevator1F_Tile0_Frame2),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile0_Frame1),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile0_Frame0)
+};
+
+static const u16 sElevatorMetatiles_1F_1[] = {
+    METATILE_ID(PokemonCenter, Elevator1F_Tile1_Frame2),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile1_Frame1),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile1_Frame0)
+};
+
+static const u16 sElevatorMetatiles_1F_2[] = {
+    METATILE_ID(PokemonCenter, Elevator1F_Tile2_Frame2),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile2_Frame1),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile2_Frame0)
+};
+
+static const u16 sElevatorMetatiles_1F_3[] = {
+    METATILE_ID(PokemonCenter, Elevator1F_Tile3_Frame2),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile3_Frame1),
+    METATILE_ID(PokemonCenter, Elevator1F_Tile3_Frame0)
+};
+
+static const u16 sElevatorMetatiles_2F_0[] = {
+    METATILE_ID(PokemonCenter, Elevator2F_Tile0_Frame0),
+    METATILE_ID(PokemonCenter, Elevator2F_Tile0_Frame1),
+    METATILE_ID(PokemonCenter, Elevator2F_Tile0_Frame2)
+};
+
+static const u16 sElevatorMetatiles_2F_1[] = {
+    METATILE_ID(PokemonCenter, Elevator2F_Tile1_Frame0),
+    METATILE_ID(PokemonCenter, Elevator2F_Tile1_Frame1),
+    METATILE_ID(PokemonCenter, Elevator2F_Tile1_Frame2)
+};
+
+static const u16 sElevatorMetatiles_2F_2[] = {
+    METATILE_ID(PokemonCenter, Elevator2F_Tile2_Frame0),
+    METATILE_ID(PokemonCenter, Elevator2F_Tile2_Frame1),
+    METATILE_ID(PokemonCenter, Elevator2F_Tile2_Frame2)
+};
 
 static void sub_80E1444(u8 taskId)
 {
@@ -70,25 +105,25 @@ static void sub_80E1444(u8 taskId)
     switch (data[0])
     {
         case 0:
-            sub_80E12E8(taskId, gUnknown_08589ABA, 0);
+            sub_80E12E8(taskId, sElevatorMetatiles_1F_0, 0);
             break;
         case 1:
-            sub_80E12E8(taskId, gUnknown_08589AC0, 0);
+            sub_80E12E8(taskId, sElevatorMetatiles_1F_1, 0);
             break;
         case 2:
-            sub_80E12E8(taskId, gUnknown_08589AC6, METATILE_COLLISION_MASK);
+            sub_80E12E8(taskId, sElevatorMetatiles_1F_2, METATILE_COLLISION_MASK);
             break;
         case 3:
-            sub_80E12E8(taskId, gUnknown_08589ACC, 0);
+            sub_80E12E8(taskId, sElevatorMetatiles_1F_3, 0);
             break;
         case 4:
-            sub_80E12E8(taskId, gUnknown_08589AD2, METATILE_COLLISION_MASK);
+            sub_80E12E8(taskId, sElevatorMetatiles_2F_0, METATILE_COLLISION_MASK);
             break;
         case 5:
-            sub_80E12E8(taskId, gUnknown_08589AD8, 0);
+            sub_80E12E8(taskId, sElevatorMetatiles_2F_1, 0);
             break;
         case 6:
-            sub_80E12E8(taskId, gUnknown_08589ADE, 0);
+            sub_80E12E8(taskId, sElevatorMetatiles_2F_2, 0);
             break;
     }
 
diff --git a/src/fldeff_misc.c b/src/fldeff_misc.c
index 39ed302609..c68a95d413 100644
--- a/src/fldeff_misc.c
+++ b/src/fldeff_misc.c
@@ -22,6 +22,7 @@
 #include "constants/metatile_behaviors.h"
 #include "constants/songs.h"
 #include "constants/vars.h"
+#include "constants/metatile_labels.h"
 
 EWRAM_DATA struct MapPosition gPlayerFacingPosition = {0};
 
@@ -800,16 +801,16 @@ static void Task_SecretBasePCTurnOn(u8 taskId)
     {
     case 4:
     case 12:
-        MapGridSetMetatileIdAt(data[0], data[1], 548);
+        MapGridSetMetatileIdAt(data[0], data[1], 0x224);
         CurrentMapDrawMetatileAt(data[0], data[1]);
         break;
     case 8:
     case 16:
-        MapGridSetMetatileIdAt(data[0], data[1], 544);
+        MapGridSetMetatileIdAt(data[0], data[1], 0x220);
         CurrentMapDrawMetatileAt(data[0], data[1]);
         break;
     case 20:
-        MapGridSetMetatileIdAt(data[0], data[1], 548);
+        MapGridSetMetatileIdAt(data[0], data[1], 0x224);
         CurrentMapDrawMetatileAt(data[0], data[1]);
         FieldEffectActiveListRemove(FLDEFF_PCTURN_ON);
         EnableBothScriptContexts();
@@ -828,9 +829,9 @@ void DoSecretBasePCTurnOffEffect(void)
     PlaySE(SE_PC_OFF);
 
     if (!VarGet(VAR_CURRENT_SECRET_BASE))
-        MapGridSetMetatileIdAt(x, y, 3616);
+        MapGridSetMetatileIdAt(x, y, 0x220 | METATILE_COLLISION_MASK);
     else
-        MapGridSetMetatileIdAt(x, y, 3617);
+        MapGridSetMetatileIdAt(x, y, 0x221 | METATILE_COLLISION_MASK);
 
     CurrentMapDrawMetatileAt(x, y);
 }
@@ -902,8 +903,8 @@ bool8 FldEff_NopA700(void)
 static void DoSecretBaseBreakableDoorEffect(s16 x, s16 y)
 {
     PlaySE(SE_TOY_KABE);
-    MapGridSetMetatileIdAt(x, y, 630);
-    MapGridSetMetatileIdAt(x, y - 1, 622);
+    MapGridSetMetatileIdAt(x, y, 0x276);
+    MapGridSetMetatileIdAt(x, y - 1, 0x26E);
     CurrentMapDrawMetatileAt(x, y);
     CurrentMapDrawMetatileAt(x, y - 1);
 }
diff --git a/src/mirage_tower.c b/src/mirage_tower.c
index 898180df47..269f8ea1b1 100644
--- a/src/mirage_tower.c
+++ b/src/mirage_tower.c
@@ -18,6 +18,7 @@
 #include "constants/maps.h"
 #include "constants/rgb.h"
 #include "constants/songs.h"
+#include "constants/metatile_labels.h"
 
 struct MirageTowerPulseBlend {
     u8 taskId;
@@ -109,24 +110,24 @@ const struct SpriteSheet gMirageTowerCeilingCrumbleSpriteSheets[] =
 
 static const struct MetatileCoords sInvisibleMirageTowerMetatiles[] =
 {
-    {18, 53, 0x251},
-    {19, 53, 0x251},
-    {20, 53, 0x251},
-    {18, 54, 0x251},
-    {19, 54, 0x251},
-    {20, 54, 0x251},
-    {18, 55, 0x251},
-    {19, 55, 0x251},
-    {20, 55, 0x251},
-    {18, 56, 0x251},
-    {19, 56, 0x251},
-    {20, 56, 0x251},
-    {18, 57, 0x259},
-    {19, 57, 0x259},
-    {20, 57, 0x259},
-    {18, 58, 0x121},
-    {19, 58, 0x121},
-    {20, 58, 0x121},
+    {18, 53, METATILE_ID(Mauville, DeepSand_Center)},
+    {19, 53, METATILE_ID(Mauville, DeepSand_Center)},
+    {20, 53, METATILE_ID(Mauville, DeepSand_Center)},
+    {18, 54, METATILE_ID(Mauville, DeepSand_Center)},
+    {19, 54, METATILE_ID(Mauville, DeepSand_Center)},
+    {20, 54, METATILE_ID(Mauville, DeepSand_Center)},
+    {18, 55, METATILE_ID(Mauville, DeepSand_Center)},
+    {19, 55, METATILE_ID(Mauville, DeepSand_Center)},
+    {20, 55, METATILE_ID(Mauville, DeepSand_Center)},
+    {18, 56, METATILE_ID(Mauville, DeepSand_Center)},
+    {19, 56, METATILE_ID(Mauville, DeepSand_Center)},
+    {20, 56, METATILE_ID(Mauville, DeepSand_Center)},
+    {18, 57, METATILE_ID(Mauville, DeepSand_BottomMid)},
+    {19, 57, METATILE_ID(Mauville, DeepSand_BottomMid)},
+    {20, 57, METATILE_ID(Mauville, DeepSand_BottomMid)},
+    {18, 58, METATILE_ID(General, SandPit_Center)},
+    {19, 58, METATILE_ID(General, SandPit_Center)},
+    {20, 58, METATILE_ID(General, SandPit_Center)},
 };
 
 static const union AnimCmd gSpriteAnim_8617DEC[] =