I have three small complaints. First, the sfx mute button should mute ALL sfx. Second, there should be instructions on what the different tiles do. Third, starting a new game should also refresh your badges. Besides these small things, this is a good game. I give it 4/5.
@ Karasu: You can only disable the music from the main menu. You have to be playing one of the levels in order to disable the sounds. Why that is, I have no idea. I think it should be changed.