Very polished entry for a jam game, and really nice blend of genres.
I really liked the megaman reference in the intro and well i guess the rest of the game that seems inspired by battle networks only with this cool twist of it being a rhytm game ^^
The game seems a bit hard at first but once you get in the groove everything flows really well, the boss fight is a bit hard though, but that's really a tiny issue considering the quality on display here.
Congrats and good job to the team :)