Audiosurf

Audiosurf is a puzzle/rhythm hybrid game developed by Invisible Handlebar, a company founded by Dylan Fitterer. The track-like sections visually mimic the music that the player selects as they run across multiple tracks and collect colored blocks that appear in sync with the music. The music used in the game can be selected from the player's own library, from almost all DRM-free formats, and from standard Redbook CDs; Audiosurf also includes the entire soundtrack from The Orange Box as part of the download.