Enter codes under "Settings" -> "Cheats". Invincibility:
Enter IRONMAN as a code.
Weaker police cars:
Enter KEYSTONE as a code.
Invincible cars:
Enter ROLLBAR as a code.
All vehicles:
Enter CARSHOW as a code.
Unlimited nitro:
Enter ZOOMZOOM as a code.
Unlimited ammo:
Enter GUNBELT as a code.
All weapons from era:
Enter GUNRANGE as a code.
Free garage:
Enter TOOLEDUP as a code.
Change clothes:
Enter FLIPFLOP as a code.
Completion Bonuses:
Beat the game to unlock the Atlus Racer, Ram Raider, and Negotiator Vehicles, as well as the "Then and Now" Era Change option.
Cheaper Parts:
To get parts cheaper, unlock the Era Change option by beating the game. Then, use inflation to your advantage. Run all your side missions in 2006, as they net you more cash. Then, buy all your parts in 1976 for ten times cheaper.
Body Snatcher!!:
Get your odometer to 666, then melee attack a pedestrian to take control of them! Spooky!
Night Night mode:
Get your odometer to 700. This mode makes it nighttime, all the time.
Shortest Day mode:
Get your odometer to 800. This mode makes a day last 24 seconds.
Far Out mode:
Get your odometer to 900. This mode enables a tripped out psychedelic effect. Groovy.
+50 Health:
Collect 10 star tokens in either era.
Double nitro:
Collect 20 star tokens in either era.
Double ammo:
Collect 30 star tokens in either era.
Double V-edit car durability:
Collect 40 star tokens in either era.
Free vehicle upgrades:
Collect 50 star tokens in either era.
