Riff Racer is a high-octane music based racing game where we create racetracks from the songs in your library. Riff Racer takes music gaming to the next level with our innovative MEGA engine. MEGA takes any song, analyses it down to its core components and creates a unique racing experience from it. Verses, choruses and drops become checkpoints, and the environment and cars are styled to the genre of music you're playing. Experiment with your music collection and find out which songs make the best racetracks! Source: The Game Website.