To play in split-screen do the following:
- Connect all controllers and log in with Player 2's PSN or guest account
- Launch Rocket League and while in the Main Menu, Player 2 presses the Options button on the controller in order to join the party
- Player 2 will then join the party and you can play any Offline or Online* mode together
Note: A PlayStation Plus subscription is required for the main account. As long as this account has the console set as its Primary PS4, any other account does not require a PlayStation Plus subscription. However, to play any Online mode, all accounts must have a PSN account in order to connect to the PlayStation Network.
Guest accounts that are not signed in to the PlayStation Network may only play Offline modes.