Really nice game!! I love the concept to put stuff in the correct box. It's very simple to play but you can get a hard time managing everything specially in late levels, which is a good thing. I really really love the presentation: the pixel art reminds me something from a vintage educational book, and music working together giving the game that vintage feeling too. The sound effects are very satisfy also!! It feels like an old PC game, something from MSX age and definitely would fit in a GB of course. Nice work, I want to keep play to beat all levels!!