If you like music and challenges then you have to try Audiosurf. http://www.audio-surf.com/ This is really fun and adds a new way to listen to music. You can add you own songs and the game converts them to tracks for you to ride. Here is the beta for you to try it out: http://www.fileshack.com/file.x/11638/Audiosurf Full version is out Friday and buy the version from steam for added extras. And a video I did with FRAPS so runs a bit slow and laggy.