Cult Classic Video Games by MitchellWA

Question 7

This PlayStation game was one of many to utilize the console's ability to keep a game's code loaded into the machine's RAM, so players could insert their own music CDs to affect gameplay. While some games used this to complicated effect (looking at you, Monster Hunter), in this game it was simple: your music would turn into crude white-line drawings with obstacles that the rabbit-like main character must dodge. Name the GAME.