The sprite work was excellent! and the puzzles were fun. I think my only real gripe with the game is that there is no undo functionality -- Or really, just that the restart cutscene isn't instant lol. Found myself restarting some of the harder puzzles a few times in quick succession due to a simple mistake that locked me in place, and waiting for the restart was a tad annoying.
Really that's a minor complaint though, and I think it's a good sign that my biggest complaint is a quality of life tweak. All in all, Great job!!