Thought I'll introduce you to a revolutionary music-based shooter game that you might like - Shmusicup (Shoot Music Up).
It's a hybrid of a music game and a shoot'em up where the enemy bullet patterns are generated by any mp3 chosen from your music collection! Here's a trailer of Shmusicup: http://www.youtube.com/watch?v=awlFDSCEBPg
If you find the concept interesting you can try out the game at http://www.shmusicup.com.
