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

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

Box as Bernando Osuna
Enter "OSUNA" as a name in career mode to unlock Bernando Osuna.

Box as Charles Hatcher
Enter "HATCHER" as a name in career mode to unlock Charles Hatcher.

Box as Chuck Zito
Enter "ZITO" as a name in career mode to unlock Chuck Zito.

Box as David Bostice
Enter "BOSTICE" as a name in career mode to unlock David Bostice.

Box as David Defiagbon
Enter "DEFIAGBN" as a name in career mode to unlock David Defiagbon.

Box as David DeMartini
Enter "DEMART" as a name in career mode to unlock David DeMartini.

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

Box as Joe Mesi
Enter "BAILEY" as a name in career mode to unlock Joe Mesi.

Box as John Botti
Enter "JBOTTI" as a name in career mode to unlock John Botti.

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

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

Box as Ray Austin
Enter "AUSTIN" as a name in career mode to unlock Ray Austin.

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

Box as Trevor Nelson
Enter "NELSON" as a name in career mode to unlock Trevor Nelson.

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 and press Triangle + Circle + X + Square.

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.