Hold L1 + R1 and press Up, Down, Right, Left, Circle, Triangle. at the main menu.
Juggernaut costumes
Hold L1 + R1 and press Down, Right, Up, Left, Triangle, Circle at the main menu.
Vintage suit
Successfully complete the game under the X-Treme difficulty setting. An arena mini-game will begin during the credits. Defeat 200 enemies before the credits end to unlock the Vintage suit.
