The visuals are neat, but the rhythm feels very odd. For the first and second level, the player moves on the offbeat, which is not super natural. In the last level, the timing felt really off. I think it's supposed to be on the beat (instead of offbeat as for the two other levels), but I could not be consistent with my moves. I think it need more visual cues of the beat.
The music is cool though, and I really like the fact that you've written backgrounds for the game. On the overall, nice job ^^