one of the best entries Ive seen in the jam. very enjoyable experience!!
loved every aspect of it. the sfx, the freedom, ui, gameplay. congrats!!
here are some suggestions (nitpicking):
- the gameplay is rather simple (in a very good way) but it is hard to explain in words. you should encourage the player to test the gameplay by itself with inputs (like "hold the 1 key and see what happens") in a easier first level
- make the "music" start automatically when the player presses any music key.
- make more levels >=( hehe just joking. it is a jam after all
again, congrats on this great game!!