Just Dance Greatest Hits for Xbox 360 is a compilation game featuring 35 popular songs from the Just Dance franchise, including titles like "Pon de Replay" by Rihanna and "Toxic" by Britney Spears. It includes various game modes for solo, duet, and group play, such as "Just Sweat" for calorie tracking, dance battles, and a "Medley" mode. The game is compatible with the Xbox 360 and uses motion detection to track player movements.