To activate these codes, enter a high score after playing and enter one of these codes as your name. Then go to the cheats menu; the cheat that you entered should have a NO to the right of it. Press ENTER to toggle it to YES, then play one of the missions or driving games and the cheat should be in effect.

NJW280172 = fast cars
WAC271074 = no police
TMR300866 = view credits
ANJW16696 = begin as a wanted person

Tip:

Bonus City:
Complete the game once to activate a hidden bonus level.