diff --git a/src/data/pokemon_graphics/back_pic_coordinates.h b/src/data/pokemon_graphics/back_pic_coordinates.h
index 67a60acd86a4..a7d03e09e1ce 100644
--- a/src/data/pokemon_graphics/back_pic_coordinates.h
+++ b/src/data/pokemon_graphics/back_pic_coordinates.h
@@ -1138,7 +1138,53 @@ const struct MonCoords gMonBackPicCoords[NUM_SPECIES + 1] =
     [SPECIES_OGERPON_WELLSPRING_MASK_TERA]           = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
     [SPECIES_OGERPON_HEARTHFLAME_MASK_TERA]          = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
     [SPECIES_OGERPON_CORNERSTONE_MASK_TERA]          = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
-
+#endif
+    [SPECIES_VENUSAUR_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  8 },
+    [SPECIES_CHARIZARD_MEGA_X]             = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  1 },
+    [SPECIES_CHARIZARD_MEGA_Y]             = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  1 },
+    [SPECIES_BLASTOISE_MEGA]               = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_BEEDRILL_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  5 },
+    [SPECIES_PIDGEOT_MEGA]                 = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  7 },
+    [SPECIES_ALAKAZAM_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_SLOWBRO_MEGA]                 = { .size = MON_COORDS_SIZE(64, 48), .y_offset =  9 },
+    [SPECIES_GENGAR_MEGA]                  = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_KANGASKHAN_MEGA]              = { .size = MON_COORDS_SIZE(64, 56), .y_offset =  6 },
+    [SPECIES_PINSIR_MEGA]                  = { .size = MON_COORDS_SIZE(64, 56), .y_offset =  7 },
+    [SPECIES_GYARADOS_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  2 },
+    [SPECIES_AERODACTYL_MEGA]              = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  8 },
+    [SPECIES_MEWTWO_MEGA_X]                = { .size = MON_COORDS_SIZE(56, 64), .y_offset =  1 },
+    [SPECIES_MEWTWO_MEGA_Y]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  2 },
+    [SPECIES_AMPHAROS_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_STEELIX_MEGA]                 = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_SCIZOR_MEGA]                  = { .size = MON_COORDS_SIZE(64, 56), .y_offset =  4 },
+    [SPECIES_HERACROSS_MEGA]               = { .size = MON_COORDS_SIZE(56, 64), .y_offset =  0 },
+    [SPECIES_HOUNDOOM_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_TYRANITAR_MEGA]               = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_SCEPTILE_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  3 },
+    [SPECIES_BLAZIKEN_MEGA]                = { .size = MON_COORDS_SIZE(56, 64), .y_offset =  0 },
+    [SPECIES_SWAMPERT_MEGA]                = { .size = MON_COORDS_SIZE(64, 56), .y_offset =  6 },
+    [SPECIES_GARDEVOIR_MEGA]               = { .size = MON_COORDS_SIZE(48, 56), .y_offset =  6 },
+    [SPECIES_SABLEYE_MEGA]                 = { .size = MON_COORDS_SIZE(64, 64), .y_offset = 13 },
+    [SPECIES_MAWILE_MEGA]                  = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  6 },
+    [SPECIES_AGGRON_MEGA]                  = { .size = MON_COORDS_SIZE(64, 56), .y_offset =  7 },
+    [SPECIES_MEDICHAM_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  1 },
+    [SPECIES_MANECTRIC_MEGA]               = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_SHARPEDO_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  3 },
+    [SPECIES_CAMERUPT_MEGA]                = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  9 },
+    [SPECIES_ALTARIA_MEGA]                 = { .size = MON_COORDS_SIZE(64, 48), .y_offset = 10 },
+    [SPECIES_BANETTE_MEGA]                 = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_ABSOL_MEGA]                   = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_GLALIE_MEGA]                  = { .size = MON_COORDS_SIZE(64, 48), .y_offset = 10 },
+    [SPECIES_SALAMENCE_MEGA]               = { .size = MON_COORDS_SIZE(56, 64), .y_offset =  1 },
+    [SPECIES_METAGROSS_MEGA]               = { .size = MON_COORDS_SIZE(64, 56), .y_offset =  6 },
+    [SPECIES_LATIAS_MEGA]                  = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  1 },
+    [SPECIES_LATIOS_MEGA]                  = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  1 },
+#if P_GEN_4_POKEMON == TRUE
+    [SPECIES_LOPUNNY_MEGA]                 = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  3 },
+    [SPECIES_GARCHOMP_MEGA]                = { .size = MON_COORDS_SIZE(64, 56), .y_offset =  4 },
+    [SPECIES_LUCARIO_MEGA]                 = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_ABOMASNOW_MEGA]               = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  0 },
+    [SPECIES_GALLADE_MEGA]                 = { .size = MON_COORDS_SIZE(64, 64), .y_offset =  3 },
 #endif
 #if P_GEN_5_POKEMON == TRUE
     [SPECIES_AUDINO_MEGA]                  = { .size = MON_COORDS_SIZE(56, 64), .y_offset =  0 },