To overhaul the gameplay of the series, 2K15 added five times more animation data than WWE 2K14, containing over fifty days work of motion capture by the WWE superstars, and over four times the amount of dialogue for commentary compared to 2K14 was recorded. The general gameplay of the game was also revised, with the wrestlers being divided once more into classes, as was present in the Smackdown vs. Raw series. This created what is known as in-ring psychology.