Vib-Ribbon

Vib-Ribbon is a pretty cool game even though I never played it, but it's a rhythm game made by the same people who made Parappa and Jammer Lammy and I love those games. What I do like about this game is that you can put music CDs and the game will generate a level with that song while the game is still running without the game disc. And that's all done on a ps1