True Crime: New York City Cheats for the GameCube

Unlimited ammunition:
Hold L + R and press X, B, A, B, B, Y at the CompStat/Map screen.

Unlimited endurance:
Hold L + R and press X, B, A, B, A, X at the CompStat/Map screen.

Double damage:
Hold L + R and press A, A, B, A, A, A at the CompStat/Map screen.

$1 million:
Hold L + R and press B, B, Y, B, Y, B at the CompStat/Map screen.

Super cop mode:
Hold L + R and press Y, A, Y, A, Y, Y at the CompStat/Map screen.

Ultra easy mode:
Hold L + R and press X, B, A, A, Y, X at the CompStat/Map screen.

Redman Gone Wild mini-game:
Hold L + R and press Y, A, A, B, A, B at the CompStat/Map screen. Or, get 100% completion. Go to the location given by Redman when he calls.

Street Races open:
Hold L + R and press Y, Y, A, A, Y at the CompStat/Map screen.

Fights open:
Hold L + R and press B, B, X, X, B at the CompStat/Map screen.

Ghetto city:
Hold L + R and press A, B, A, Y, Y, Y at the CompStat/Map screen.

Zombie mode:
Hold L + R and press X, Y, B, A, B, A at the CompStat/Map screen. Marcus will have no limbs! Repeat the code to see his torso only.

New Puma Costume:
Hold L + R and press Y, A, X, B at the CompStat/Map screen, or collect the 10 hidden pairs of pumas throughout the city. Either way, go to the puma store to claim your prize.