Tiny nitpick but you forgot to put a space between "next" and "level" :P
Was the yellow square just to throw people off? it's not actually needed for this puzzle
A well designed game with simple but effective graphics, music was pretty bland and reminded me of Ricky & Morty when Jerry is listening to human music (reference here if you haven't watched it) but I didn't turn them off so while repetitive, it wasn't unpleasant.
I got a little stuck at level 7 but I'm not great with puzzle games.
Overall I had fun with this game and I don't really have any feedback outside of the music.