You can play Rocket League online and offline with a friend locally. To get started, you will need two controllers.
To activate the Split-Screen Feature:
Start your PlayStation
Launch Rocket League with your main controller
Press the PlayStation button with your second controller
Using the second controller, select one of the following:
Get Started - To create a new PlayStation account or fully sign-in with an existing account
Sign In and Play - To sign in with an existing account. Once you log out, no game data will be saved to this console
Quick Play - No PlayStation account is needed. Simply choose this option to play Rocket League
Once you have signed in, you will return to the Rocket League Main Menu
Press Settings with the second controller
Player 2 will then appear in the party lobby
Player 1 can then choose the Playlist for both players to play in
Note: Guest accounts that are not signed in to the PlayStation Network may only play Offline.