Woo, I beat it! I'm impressed with how many levels you made, and I really like the difficulty curve.
You took the time to make multiple levels, interesting mechanics, a menu, sounds and sound effects... this is great. Not a lot of people can pull that off in a game jam.
That said, I felt like the music worked but the sound effects were a little off putting/non-compatible with the music and visuals. They were kind of retro/digital sound effects, but the game is hand drawn looking/not an arcade style game or retro pixel art.