I've seen a few games in the jam that used a similar puzzle mechanic, but this one certainly has some of the most appealing graphics. (At least one I played was 2D, which made it a lot harder to see what was happening). The levels in this game are a little simplistic, and the falling blocks really only work to make the puzzles easier, as it only limits what the player can do. It's very neat, but it left me wishing there was more done with the idea. It was still good, just feeling a little light on the brain-teasing puzzles.