Select the "Extras" option at the main menu. Then, select the "Cheats" option and enter one of the following codes to activate the corresponding cheat function.

All multi-player characters - Enter Left, Down, Left, Right, Down as a code.

All costumes - Enter Right, Left, Down, Up, Right as a code.

Unlimited Chi - Enter Down, Right, Left, Up, Down as a code.

4x damage multiplier - Enter Up, Down, Up, Right, Left as a code.

Big heads in Story mode - Enter Down, Up, Left, Right, Right as a code.

Dragon Warrior costume in multi-player mode - Enter Left, Down, Right, Left, Up as a code.

Full upgrades - Enter Left, Right, Down, Left, Up as a code.

Invincibility in Story mode - Enter Down, Down, Right, Up, Left as a code.