diff --git a/spritesheet_rules.mk b/spritesheet_rules.mk
index f02b18f936..96ef86ed5b 100644
--- a/spritesheet_rules.mk
+++ b/spritesheet_rules.mk
@@ -1968,7 +1968,7 @@ $(OBJEVENTGFXDIR)/pokemon/kyogre.4bpp: %.4bpp: %.png
 	$(GFX) $< $@ -mwidth 4 -mheight 4
 
 $(OBJEVENTGFXDIR)/pokemon/groudon.4bpp: %.4bpp: %.png
-	$(GFX) $< $@ -mwidth 4 -mheight 4
+	$(GFX) $< $@ -mwidth 8 -mheight 8
 
 $(OBJEVENTGFXDIR)/pokemon/rayquaza.4bpp: %.4bpp: %.png
 	$(GFX) $< $@ -mwidth 4 -mheight 4
diff --git a/src/data/object_events/object_event_graphics_info_followers.h b/src/data/object_events/object_event_graphics_info_followers.h
index 054b1aa981..1bef363460 100644
--- a/src/data/object_events/object_event_graphics_info_followers.h
+++ b/src/data/object_events/object_event_graphics_info_followers.h
@@ -416,7 +416,7 @@ const struct ObjectEventGraphicsInfo gPokemonObjectGraphics[NUM_SPECIES] =
     [SPECIES_LATIAS] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 512, 32, 32, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_NONE, &gObjectEventBaseOam_32x32, sOamTables_32x32, sAnimTable_Following, sPicTable_Latias, gDummySpriteAffineAnimTable},
     [SPECIES_LATIOS] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 512, 32, 32, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_NONE, &gObjectEventBaseOam_32x32, sOamTables_32x32, sAnimTable_Following, sPicTable_Latios, gDummySpriteAffineAnimTable},
     [SPECIES_KYOGRE] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 512, 32, 32, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_NONE, &gObjectEventBaseOam_32x32, sOamTables_32x32, sAnimTable_Following, sPicTable_Kyogre, gDummySpriteAffineAnimTable},
-    [SPECIES_GROUDON] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 512, 32, 32, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_FOOT, &gObjectEventBaseOam_32x32, sOamTables_32x32, sAnimTable_Following, sPicTable_Groudon, gDummySpriteAffineAnimTable},
+    [SPECIES_GROUDON] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 2048, 64, 64, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_FOOT, &gObjectEventBaseOam_64x64, sOamTables_64x64, sAnimTable_Following, sPicTable_Groudon, gDummySpriteAffineAnimTable},
     [SPECIES_RAYQUAZA] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 512, 32, 32, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_NONE, &gObjectEventBaseOam_32x32, sOamTables_32x32, sAnimTable_Following, sPicTable_Rayquaza, gDummySpriteAffineAnimTable},
     [SPECIES_JIRACHI] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 512, 32, 32, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_NONE, &gObjectEventBaseOam_32x32, sOamTables_32x32, sAnimTable_Following, sPicTable_Jirachi, gDummySpriteAffineAnimTable},
     [SPECIES_DEOXYS] = {0xFFFF, OBJ_EVENT_PAL_TAG_DYNAMIC, OBJ_EVENT_PAL_TAG_NONE, 512, 32, 32, 2, SHADOW_SIZE_M, FALSE, COMP, TRACKS_FOOT, &gObjectEventBaseOam_32x32, sOamTables_32x32, sAnimTable_Following, sPicTable_Deoxys, gDummySpriteAffineAnimTable},