Ride your music! Audiosurf is a puzzle racer where you use your own tracks to create your own experience. The shape, the speed, and the mood of each ride is determined by the song you choose. You earn points for clustering together blocks of the same color on the highway, and compete with others on the internet for the high score on your favorite songs.
This game is awesome, if you like music and playing simultaneously, this game is for you :) ...and is challenging too.