The gameplay in Lips is similar to the gameplay of SingStar and Karaoke Revolution. In addition to supporting single-player, the game allows two players to sing duets or play competitively in various multiplayer modes including “Time Bomb”, “Kiss”, and “Vocal Fighters”. Unlike other music games, players cannot fail out of a song if they sing badly (or even if they don’t sing at all).[4] The game does not have a difficulty setting but rewards players for their singing in six categories including rhythm, pitch, and vibrato.[5]