Dumb boxers
Use the following name for your boxer: JESSICA MELTON.

Enable big heads
Use the following name for your fighter: DAVID TUA.

Get all boxers
Use the following boxer name: MIKE TYSON.

Get all boxing arenas
Use the following fighter name: LENNOX LEWIS.

God mode
Use the following boxer name: MUHAMMAD ALI.

Make boxers fart
Use the following fighter name: ADAM GARDNER.

All Boxers' Life Mode
Go to the Setup menu, and proceed to the cheat menu. Enter the following code to open all of the boxers' life mode: X, Square, Circle, R1, X, Square, Circle, R1.

Fat Mode
Use the following name for your boxer: RICH OBERDICK.