Vehicles play a prominent role in the game, replacing the moves and transformations featured in its predecessors. The vehicles can be built freely by the player from over 1600 different components available,[10] such as body panels, engines, wheels, wings, propellers, fuel tanks and weapons.[3][11] Vehicle types include automobiles, motorbikes, boats and aeroplanes.[5] To create vehicles, the player must collect vehicle parts and blueprints, which may be found scattered throughout the hub world[12] or earned by winning specific challenges.[13] The player may also purchase preset blueprints and vehicle parts from Humba Wumba in Showdown Town.[14][5] Players were once able to send and receive blueprints over Xbox Live; however, servers for this have been shut down since.[15]