Invincibility
 Enter "INVINCIBLE" as a name in career mode.

 
 Double damage
 Enter "DOUBLEDAMAGE" as a name in career mode.

 
 Full attributes in career mode
 Enter "100%" as a name in career mode.

 
 Sepia tone mode
 Enter "SEPIA" as a name in career mode.

 
 Black and white mode
 Enter "BAW" as a name in career mode.

 
 Gerber baby picture
 Enter "NALU" as a name in career mode. A picture of the Gerber baby will appear
 next to the round indicator in the lower right hand corner of the screen.

 
 Box as Ashy Knucks
 Enter "KNUCKS" as a name in career mode to unlock Ashy Knucks.

 
 Box as Barry Sanders
 Enter "SANDERS" as a name in career mode to unlock Barry Sanders.

 
 Box as Jason Giambi
 Enter "GIAMBI" as a name in career mode to unlock Jason Giambi.

 
 Box as Junior Seau
 Enter "SEAU" as a name in career mode to unlock Junior Seau.

 
 Box as Owen Nolan
 Enter "NOLAN" as a name in career mode to unlock Owen Nolan.

 
 Box as Schmacko Throb
 Enter "THROB" as a name in career mode to unlock Schmacko Throb.

 
 Box as Steve Francis
 Enter "FRANCIS" as a name in career mode to unlock Steve Francis.

 
 Box as a baby
 Enter "BABY" as a name in career mode to unlock a baby.

 
 Box as a bulldog
 Enter "BULLDOG" as a name in career mode to unlock a Bulldog.

 
 Box as a clown
 Enter "CLOWN" as a name in career mode to unlock a Clown.

 
 Box as a cyclops
 Enter "EYE" as a name in career mode to unlock a cyclops.

 
 Box as a gorilla
 Enter "GORE" as a name in career mode to unlock a Gorilla.

 
 Disable all active codes
 Enter "RESETPASS" as a name in career mode.
 

 Play as Ashy Knucks
 Enter this name when starting Career Mode: MECCA


 Play as Barry Sanders 
 Enter this name when starting Career Mode: MRBARRY 


 Play as Bernando Osuna 
 Enter this name when starting Career Mode: OSUNA
 

 Play as Charles Hatcher 
 Enter this name when starting Career Mode: HATCHER 


 Play as Chuck Zito 
 Enter this name when starting Career Mode: ZITO 


 Play as David Bostice 
 Enter this name when starting Career Mode: BOSTICE 


 Play as David Defiagbon 
 Enter this name when starting Career Mode: DEFIAGBN 


 Play as David DeMartini 
 Enter this name when starting Career Mode: DEMART 



 Signature moves
 Press Triangle + Circle to do a boxer's signature move. For example, press
 Triangle + Circle with Tua and he will do his devastating left hook.

 
 Bite opponent's ear
 During a match, hold L1 + R1 to clinch your opponent and press Triangle +
 Circle + X + Square. -From: sjpagels@hotmail.com

 
 Illegal head butt
 During a match, hold R1 + R2 and press Triangle.

 
 Illegal low punch
 During a match, hold R1 + R2 and press X.

 
 Illegal kidney punch
 During a match, hold R1 + R2 and press Circle.

 
 Illegal elbow
 During a match, hold R1 + R2 and press Square.

 
 Illegal kick
 During a match, press Triangle + Circle + X + Square.
 
 
 Game Shark Codez

 
 Infinite Creation Points
 800ED0EE 03E7
 
 Quick Count
 800E9FA8 000A
 
 No Count
 800E9FA8 0000
 
 Hold X For Rapid Recovery When Knocked Out 
 D0127A8A BFFF
 80127B22 0002
 
 Press L2 to End Round
 D0127A8A FEFF
 80121ABC 0000