I was wondering if something like this existed? As in, a horizontally scrolling shooter, where it would base the level/enemies on an imported/analyzed MP3. Trying to imagine one conjures up a rather familiar deja vu feeling, however i can't quite place my finger on it. I know Beat Hazard exists, however it's not quite the same since that's a fixed level and you can move all over the place, this would be solely moving up and down as enemies came from right to left. There's obviously Audiosurf as well, but that's not a shooter at all.