First of all, it's incredible that you made this game solo!!
The mechanics are intuitive, but quickly ramp up in difficulty, and the game is satisfying to play, even if the later levels proved to be too difficult for our small brains :3
The artstyle is clean and cute, the UI looks nice, the sounds are satisfying and the music is pleasant to listen to - it's pretty much a perfect little game! A super impressive game jam project.