What are some alternatives?
When comparing SingStar Dance and Rock Band, you can also consider the following products
DJ Hero - DJ Hero is Music, Rhythm-based, Single and Multiplayer video game developed by FreeStyleGames and published by Activision.
PaRappa the Rapper 2 - PaRappa the Rapper 2 is Music, Rhythm, Single and Multiplayer video game developed by NanaOn-Sha and published by Sony Computer Entertainment.
World in Audition - World in Audition is an Addictive, Dancing and Music Simulation.
Performous - Performous is a Music and Dancing Simulation released by Loud Arts.
Osu - Osu is Music, Rhythm, Single and Multiplayer video game developed by Dean Herbert.
Rocksmith - Rocksmith builds off of the fundamentals of music games like Rock Band and Guitar Hero by offering fundamental lessons in actually playing guitar.