its a good puzzle game i enjoyed it there are only 3 things i would add,1: more music 2: make the music persistent this is something i see in a lot of games where the music restarts when the level changes or when you restart the level, the beginning gets old fast, and if you make the music persistent than it makes level switches feel smoother rather than jarring, 3: add a screen wipe or something this is small it doesn't matter to much but it always feels nice. other than that good puzzles i liked the difficulty. thumbs up!