A DDR (Dance Dance Revolution) song that runs between 140 and 320 beats per minute. Part of the "Max" series (Max 300,
Maxx Unlimited, and the Legend of MAX,) It runs at a very quick pace. It has been given a legendary "10-foot rating", naming it as one of the hardest DDR songs in existence. (Only about 7 songs have been given a 10 foot rating, and some beyond that.)
It is an ExtraStage in DDRMAX2. (To access ExtraStage, the player must score an AA ranking or higher on his Final Stage song,
Heavy mode.) In ExtraStage, the player is forced to
play the heavy difficulty at 1.5x speed, in Reverse (the arrows scroll down instead of up), and Dark. (The stepzone is not displayed)
If Maxx Unlimited is completed as an ExtraStage, the player plays the Encore Extra Stage, Kakumei. (革命)