Instructions
Launch "Sonic's Ultimate Genesis Collection" on your PlayStation 3.
Press "Start" on your PlayStation 3 controller at the main menu.
Select your "Sonic" game from the list provided. "Sonic the Hedgehog 2" and "Sonic the Hedgehog 3" are the only two "Sonic" games to allow two players.
Press "X" on the second controller when prompted by the game after it has loaded.
Select "1 Player" from the main menu of either game to start the game. For "Sonic the Hedgehog 3," after selecting "1 Player," you must also choose to play as both Sonic and Tails combined by selecting them from the character-selection screen.
Use a second PlayStation 3 controller to control Tails, Sonic's sidekick. Tails operates the same as Sonic. However, in "Sonic the Hedgehog 3," Tails can fly by rapidly pressing the "X" button while in midair.