I love this so much! Perfect scope for a game jam. I've written a page of notes on the successes of the game design and art of this game, to inspire me in future game jams.
BUT there is a bug. On the level with the large, very wide, moving obstacle/wall you can simply skip the puzzle and walk right over the obstacle that blocks the exit. Same with the following level after that.
I hope you have enough time to fix it before the deadline.