Lips: Number One Hits is a multiplayer music rhythm game for the Xbox 360, falling into the karaoke genre. As a sequel to the original Lips game, it features a collection of popular chart-topping songs from various artists, allowing players to sing along with the original music videos. Players can use motion-sensitive microphones to perform and interact with the music, scoring points for pitch, rhythm, and timing. The game encourages party atmospheres, offering cooperative and competitive modes for an engaging and social singing experience.