I got this game a few days ago, and have been playing it nonstop! The graphics are AMAZING for a shooter game, and the music-incorporated enemy formations are a cool twist on the conventional arcade games. Some people are saying that the "play your own music" mode wont work; well I had the same problem at first. What you are supposed to do whenever you download a new app is turn your iPod off, then back on. This resets the RAM and makes games run smoother. This fixed my problem! I am still enjoying this wonderful game, and I highly recommend it!
MilanFam about Wave - Against every BEAT!