Neat game! The collision is a bit wonky, and like others have said, it gets hard really quickly. But I like the mechanics themselves from the fact that you have to get your attack ability before you can attack, allowing the enemies to duplicate, and the fact that they duplicate by shooting walls, which means you have to choose between getting a shortcut by letting the enemy shoot the walls or not letting them but then you have to go the long way. Definitely could be expanded. So, good job!