I quite liked this! My only big issue was the opening tutorial, It took me a long time to figure out that you don't sink while in your shell and the momentum can be pretty finicky. I think having fans there would have helped. Also the pixel bevel can be stood on in a few places and since you can't jump you can get stuck on corners. Otherwise I thought the art was cute and the puzzles were fun and interesting - esp. enjoyed how you had the coiling and mucus serve multiple functions.