 As in previous installments, players must mimic the routine of an on-screen dancer to a chosen song, scoring points based on their accuracy.A new "challenge" feature was added, which allows players to send and receive challenges to and from other players as ghost data.As with the spin-off "Just Dance Now", "Just Dance 2015" allows a smartphone to be used as a controller with a companion app, as an alternative to requiring a console's own motion control accessories.