It's very rare to see rhythm games in jams, so this alone will get me very excited for your game. The art style is also one of a kind, which I enjoy very much! As a rhythm game player I find this game a bit on the easy side, but I guess too harsh will alienate a lot of players, so that's fine. I'd say it would be better if the beat aligned more tightly with the music would make the game much more enjoyable though. The background behind the notes also jumped a bit when it started to loop, and that threw me off somehow.
Anyway, I like this game a lot, well done!