Invincibility
Press quickly: Right, A, Right, Left, Right, RB, Right, Left, A, Y and be invincible for 5 whole minutes. To enjoy the cheat again, you must the code again after five minutes has passed. This cheat is only applicable to humans and not cars or motorcycles.
Super jump
Press quickly: Left(2), Y(2), Right(2), Left, Right, X, RB, RT. Hold X to jump very high.
Super fast running ability
Press quickly: Y, Left, Right(2), LT, LB, X.
Much faster swim
Press quickly: Left(2), LB, Right(2), RT, Left, LT, Right
Full health and shield
Press quickly: B, LB, Y, RT, A, X, B, Right, X, LB(3).
Decreased wanted level
Press quickly: RB(2), B, RT, Right, Left, Right, Left, Right, Left.
+1 wanted level
Press quickly: RB(2), B, RT, Left, Right, Left, Right, Left, Right.
Recharge special ability
Press quickly: A(2), X, RB, LB, A, Right, Left, A.
Give weapons and extra ammo
Press quickly: Y, RT, Left, LB, A, Right, Y, Down, X, LB(3) and get some extra ammunition, assault rifle, sawed off shotgun, grenade, pistol, knife, SMG, RPG & a sniper rifle.