Dance Dance Revolution Extreme (?????????????????????, Dansu Dansu Rebory?shon Ekusutor?mu) is a music video game by Konami and is the eighth release in the main Dance Dance Revolution (DDR) series. It was released on December 25, 2002 for Japanese arcades, on October 9, 2003 for the Japanese PlayStation 2, and on September 21, 2004 for the North American PlayStation 2. (wikipedia.org)