mike - glad you enjoyed it, 13 is pretty good, I usually get to 13 myself. Tom - 19? dang, you must have the reflexes of a teenager! Yes, the minimum button size is one pixel. Kas - being a music novice, I don't know what polyphony is. I just modified your code until it made a one-shot. The only thing is, it doesn't quit for some reason - once you fire your first shot you get sound for the rest of the game. That's a good thing for the game because it keeps the tension level up, but I don't understand why it does that. All - I would like to add more to the game like some Space Invaders marching noises or some Nintendo music, or perhaps a time-based score factor, but what the hey, it's done and it's fun. I wonder how else we can muck with MAUI for entertainment purposes? Les