Interesting concept. The game itself operates well, with clear graphics and movement. I really liked the unique soundtrack, it complemented the concept and gameplay and was enjoyable to listen to on its own. The only negative criticism I have is that it's a little tedious after a while; I like to see changes in the game as I continue. Because of this, in addition to the difficulty level, I just didn't feel motivated to try to keep going. Of course, I understand that you had to fit the jam challenge, so I can't judge too harshly.
Over all it's a nice, well-executed, and cute time-waster. I like the visual and audio design, but the actual game is just not to my personal tastes.