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Def Jam Vendetta
All Characters:
Highlight a non-story mode character select screen then hold L+R+Z then press the following code for your favourite fighter.

Arii:
A, Y, B, X, Y.

Carla:
A, Y, A, A, A.

Chukklez:
Y, Y, B, A, X.

Cruz:
X, B, A, A, X.

D-Mob:
Y, B, Y, A, X.

Dag G:
A, X, A, X, Y.

Deebo:
X, X, A, A, B.

Deja:
X, Y, X, X, A.

DMX:
X, A, X, B, Y.

Drake:
B, Y, X, A, A.

Funkmaster Flex:
X, B, X, X, Y.

Headache:
B, B, B, Y, X.

House:
B, A, B, X, A.

Ludacris:
X, X, X, Y, B.

Method Man:
Y, X, A, B, X.

Moses:
B, B, Y, Y, A.

Peewee:
A, A, A, B, X.

Pockets:
B, Y, X, Y, A.

Razor:
B, Y, B, X, A.

Ruffneck:
A, Y, A, B, X.

Steel:
A, B, X, X, B.

T'ai:
X, X, Y, A, X.

Zaheer:
B, B, Y, A, A.