First installment in the DDR series to support the EyeToy USB camera. Players can use both the dance mat and EyeToy as well as an line up more than 65 songs and original hit dance modes to partake in the most interactive video game experience on the market. Upgrades include a new party mode that lets players of all ages experience a new element of fun and physical interactivity. DDR Extreme also includes two modes that will test even the most seasoned players. The Mission mode has players performing a series of tasks on their quest to become the most extreme dancer, while the Endless mode allows players to play all the songs as one long continuous nonstop mix. Also includes Lesson and Edit modes that let players learn and customize their dance moves, and the popular Work Out mode that helps players to track the calories they burn as they dance off the pounds.