Nice take on the theme! The levels are very well designed and satisfying. Most of the bugs seem to be with certain edge cases, like a block getting pushed into a wall, or a case where the player is touching too many surfaces, but it's understandable to see that in game jams. Only other thing is that sometimes the arrow key directions feel weird, for instance when you hold left and right to move up and down. Not sure of a good way to improve on that, but maybe something visual could help. Overall, great job!