Lo and behold: The current Demo for my Jazz Jackrabbit Music Rhythm game.
http://www.mediafire.com/download.php?xj2nyzywijb

Contents:
JJ1- Crysillis
JJ1- Medivo
JJ1- Deckstar
JJ2- Intro
JJ2- Finale
JJ2- Jazz be damned
JJ2- Dark Groove
JJ3- Haunted Terrerro
JJ3- Castle Boss
JJ3- Basement Boss
Dues Ex- Hong Kong Action.

Requirements: Have Frets on Fire

Notes: As this is the current working demo i have some pre comments.

One part of Deckstar has extra notes and will get fixed eventually.
Jazz Be Damned is only roughly half done as of now
All Songs are expert Difficulty, Crysillis has a hard option.