That was a very unique use of the theme and a really good concept and mechanic! I found myself wondering on some of the earlier levels if it could get to the point where the level was too small for you to fit through the door anymore ... and I found the answer to that later on for sure! I'm not normally one for speed based skill games, but this one had just enough precision needed that I felt like I could do it. Got through all levels, though some of them with just one life left!