Went back in. It seems, when shrunk, can leave teh map/room over the black part and the grey lines in between tiles.
Also noticed the counterintuitive speed difference between the two states.
Oh, I will have to take a look at that! Nice Catch.
Good catch! I know of 1 other... Well its not 100% a bug related to that, but that one is different. I think I know why you can do that, and it was a bandaid to prevent getting stuck on a different level.