Infinite combo meter
At the character selection screen, hold L1 + R2, then press Square, X, Circle, Triangle. If you entered the code correctly, the word "Combo" will appear under your player. Then the combo meter will automatically refill.

Hyper mode
At the character selection screen, hold L1 + R2, then press Up, Down, Up, Down, Square, Triangle, Right, Left.

Random character
At the character selection screen, hold Up and press Start.

Invincibility
Pause the game and press X, Triangle, R2, Up.

Easy CPU opponent
Pause the game and press X, Triangle, R2, Triangle, X.

No human damage
Pause the game and press X, Triangle, R2, Up.

Weaken opponent
Pause the game and press X, Triangle, L2, Right.

Stronger hits
Pause the game and press X, Triangle, L2, Down.

Two times less powerful hits
Pause the game and press X, Triangle, L2, Right.

Stop timer
Pause the game and press X, Triangle, R2, Left.

Disable all enabled cheats
Pause the game and press Square, Circle, Triangle, X.