The puzzles were well-thought out and required a bit of optimization on the player's part to complete them within the allotted number of moves.
The graphics are stylized in a way that 8x8 works well for.
The music, although not GameBoy-like, gives the game a more relaxing vibe that I expected. Kinda reminds me of *Baba Is You*, which is a game I absolutely adored. GB sound chip sounds are not required for the jam, so that's not a problem regardless.
My biggest gripe is the crabs seemed to have different movement rules on different levels. Maybe with some more time a different enemy sprite could have been done to disambiguate the behaviors.