diff --git a/png/map/intro.png b/png/map/intro.png
index f45d373..b7c466c 100644
Binary files a/png/map/intro.png and b/png/map/intro.png differ
diff --git a/png/map/intro_coll.png b/png/map/intro_coll.png
index fdb70c8..5192a4f 100644
Binary files a/png/map/intro_coll.png and b/png/map/intro_coll.png differ
diff --git a/src/bg.s b/src/bg.s
index a768d9b..4bb1e29 100644
--- a/src/bg.s
+++ b/src/bg.s
@@ -33,7 +33,11 @@ BG_Init::
     call memcpy
     dec e
     jr z, .done
-    ld d, 32 - intro_WIDTH
+    ; nothing to skip if map is max width
+    ld a, 32 - intro_WIDTH
+    or a
+    jr z, .copy_map_row
+    ld d, a
 .skip:
     ; skip over trailing part in vram
     inc c