pretty cool game actually. The red lamps floating were pretty funny but soon they will lose context lol. The game is too hard, like i don't see a beginner properly remembering the right squares in a 6x5 grid, maybe add a difficulty system with easy/medium/hard, where the harder = the more squares, and the easy mode coupld only have a 4x4 grid or smth. I also noticed that the keyboard mode is easier, as you don't need to mentally map the position of the squares, but instead just 3 keys. The idea of adding codes was kinda cool too. The biggest issue with this game imo is that it was made with scratch apparently, and i think you should switch to an actual game engine like unity, not only because you will be less limited, but also because you will be able to build your games to several platforms, including mobile (this could easily be a cool mobile game imo).