I had trouble understanding how the game works, especially since the borders of the room don't block you. The movement is also a bit jerky but it doesn't affect the gameplay, just visually looks a bit strange.I like the visuals, simple but clean, and the music is very good. I would just make the hammer a little bigger, it can be a bit tricky to attack the balls without being touched with such a low range. Anyway congrats on making the game!