Level Select:
At main menu or during gameplay, press L1, L2, X, Triangle, L1, L2, X, Triangle.
Characters in Multiplayer:
At main menu or during gameplay, press R2, O, X, Square, Triangle, Right, Down, Left, Up, L2, L1, O, Square, L1, L2, L1, O, L2, Square.
Invincible Hiro:
During gameplay press L1, L2, O, Square, L1, L2, O, Square.
1-Hit Kills for Hiro:
During gameplay press L1, L2, Left Analog Stick Up, Left Analog Stick Down, Left Analog Stick Left, Left Analog Stick Right, Triangle, Square, X, O.
All Magic:
During gameplay press R1, R2, L1, L2, X, Triangle, O, Square.