This was a pretty cool Gameboy game! I really like the art of the houses and objects such as the generator! I think what this game needs most is to give more cues to the player on what exactly they need to do and how everything works. When you are typing the code, there's no indicator that you have to press 'enter', apart from it being in the game description. I think what you could do is state on the screen that you need to press 'enter' in order to guess. There also didn't seem to be a way to leave the generator screen upon entering it, so that is something that I would implement as well. Other things that would be beneficial would be to design the map in a way where it's easier for the player to navigate. One way I would do this would be to have some distinct objects or unique tree layouts in rooms, so that the player could tell where they are. Congrats on the submission!