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.[3] 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. Motions are detected through the phone using its internal sensors.[4][5]
A new "wall" feature allows players to view news and updates, including received challenges.[6] The online "World Dance Floor" mode introduced in 2014returned,[3] along with the "Autodance" video creator. Players could also submit clips of their own gameplay for a chance to be incorporated into a "Community Remix"—routines for selected songs that feature a compilation of player videos in place of the rendered dancers.[7]
All online services ended on November 19, 2018.