For a Game Boy Color puzzle game, this is alright I guess, there a decent amount of content, though starting the game over because of one failed level out of 30 when you also have a time limit which the game does not inform you of until it's almost out, isn't the best.

You may also go inside from hearing the grand total of 3 or so music tracks on loop for this 2h+ long experience. But the actual puzzles are pretty decently designed and salvage the game to "OK" if occasionally mediocre in my opinion.