Phantom Echos is an interactive 2D musical adventure that's unlike any other! The player chooses any song to upload. The landscape of the game is generated by melody of the song, and the speed at which the landscape goes by varies with the tempo of the song.
This game is built using the Echonest API and the HTML5 canvas during Tufts Hack 2013. Check us out on the Echonest blog!
http://blog.echonest.com/post/65629622600/up-all-night-with-the-fall-2013-tufts-hackathon-crew