Enter these on the map screen and not during gameplay:
Code Effect
Up, Right, Down, Left, Up, X Unlock All Impound Garage Cars
R1 ,L1, up, right, left, down,
L3, R3, x, Square, circle, triangle Unlocks Snoop Dogg
Map Screen Button Codes...
Left, Right, Left, Right, X All Driving Upgrades Unlocked
Up, Down, Up, Down, X All Fighting Moves Unlocked
Right, Left, Right, Left, X All Gunplay Skills Unlocked
Down, Down, Down, X Bigger Car (must be in car
before you enter it on the pause
menu)
up, x, x, x boost
up, right, down, left, up, x impound garage cars unlocked
X, Circle, Square, Triangle Show's Nick Kang's Current
Location
up, up, up, x smaller car
(alcuni li ho provati, come quello che mostra la posizione, e funzionano)