Knockout Kings Cheats

Regain energy:
Hold L1 + L2 + R1 + R2 when given a choice to hit the heavy or speed bag between fights. Two to eight points of energy will be regained, depending on how long the buttons are held.

Fight as a bear:
In the main menu, push Right + Square, Right + Triangle, Right + Circle, Right + X. You will hear a sound if you have entered the code correctly. Pick any boxer to fight as a bear.

Big head boxers:
In the main menu, push Left + Circle, Left + Triangle, Left + Square, Left + X. You will hear a sound if you have entered the code correctly. This code may only be enabled on custom created boxers.

Taunt opponent:
Push R1 + R2 + X.

Change stance:
Push L2 + R2 + Left or L2 + R2 + Right.

Super fighter:
Create a career mode boxer with the name PSIRULES, fight one match, save the game, then reload that boxer in career mode.