A cult classic music game by Nana On-Sha (creators of the Parappa series), this deceptively simple game has players running on a course of platforming puzzles built out of music. Little Vibri must avoid being knocked down and devolved as he makes his way down the path of the ribbon. Shapes appear in the ribbon as you go, and Vibri must react by the action of a button or combination of buttons. Survive the shifting of the ribbon to make it to the end and earn your score! Players can play the game either with the title's uncharacteristically catchy (and tempo-schizophrenic) music by Japanese mix artists Laugh and Peace or else they can pop in their own music CDs and play through stages dynamically generated by the music.