Loved the game, is a simple concept that has been well executed for a challenging and fun puzzle game, the art style is pretty neat as well.
The only problem I had with the game is how some mechanics aren't so intuitive as the devs might have imagined they were, (specially on the last level) but then again this was done during a game jam and this kind of stuff tends to happen, there are more important stuff to worry about during the jam than a tutorial for the game.