Rocket League: Collector's Edition - Xbox One Extensive Battle-Car customizations with more than 100 billion possible combinations. Unlockable items and vehicles, stat tracking, leaderboards, and more Addictive 8-player online action with a variety of different team sizes and configurations Amazing 4-player splitscreen mode that can be played locally or taken online Rocket League Collector's Edition includes every item from the previously released DLC Packs: Supersonic Fury, Revenge of the Battle-Cars, and Chaos Run, plus 4 additional Battle-Cars