I liked the art :v, although I found the movement speed somewhat slow/frustrating
The screen also made me a little uncomfortable, I had to play very close to my screen to see the game well, good choice of music, it goes well with the game.
The difficulty curve increases considerably from level to level and I think that the collisions (at least with objects) are somewhat out of phase.
Overall nice game. Good work guys, I hope to see you in more game jams.