Great game, I would agree that there should be a mute button or possibly a chance to turn the music down. If you want people to have to listen to music, maybe offer a choice for them to pick music from their own computer ;-]. I like the overall design of the game, the background could use some work, but its better than a solid color. The levels are awsome. Starting to get hard around level 19. Some of the lower levels are harding than some of the higher ones though. Overall, good game.