Drive a limousine:
Pause game play, then hold R1 and press Square, X(3), Triangle, L1, R1. Quit the game, go to main menu, then press R1 + L1 + L2 + R2 + Square. Choose Joy Ridin' mode and you will be able to select a limousine.

Transparent car:
Pause game play, then press Left, Up, Right, Down, Right, Up, Left, L2. A sound will confirm correct code entry. Repeat this code to disable its effect. Note: The rear view mirror is not available in this mode.

Invisible car:
Pause game play, then press R1, L1(2), R2, L1(2), L2. A sound will confirm correct code entry. Repeat this code to disable its effect.

Lighter cars:
Pause game play, then press L1, R1(2), L2, R2(2). A sound will confirm correct code entry. Repeat this code to disable its effect.

No gravity:
Pause game play, then press R1, R2, R1, R2, Up(3). A sound will confirm correct code entry. Repeat this code to disable its effect. Vehicles in traffic will float when hit.

Increase time warp:
Pause game play, then press R1, L1, L2, R2, Right(3). A sound will confirm correct code entry. This can be repeated up to three times to increase the effect.

Decrease time warp:
Pause game play, then press R2, L2, L1, R1, Left(3). A sound will confirm correct code entry. This can be repeated up to three times to increase the effect.

Increase frame rate:
Pause game play, then press R3, L3(2), R3, Left, Circle, Left, Circle. A sound will confirm correct code entry. Repeat this code to disable its effect. Note: The rear view mirror is not available in this mode.

Unlimited countermeasures:
Pause game play, then press R3(3), R1(2), R2(2). A sound will confirm correct code entry. Repeat this code to disable its effect.

ATV Boost:
Successfully complete Smuggler's Mission 14.

ATV Monster:
Successfully complete Smuggler's Mission 10.

Baja Truck Bombs:
Successfully complete Smuggler's Mission 7.

Baja Truck:
Successfully complete Smuggler's Mission 4.

D-5 Hondo:
Successfully complete Smuggler's Mission 11.

Du Monde Oil Slick:
Successfully complete Smuggler's Mission 5.

Dual Career Countermeasures:
Successfully complete Smuggler's Mission 36.

Grenadier Bombs:
Successfully complete Smuggler's Mission 25.

Grenadier:
Successfully complete Smuggler's Mission 24.

Hondo Oil Slick:
Successfully complete Smuggler's Mission 15.

Hoverbike:
Achieve a "Great" rank on all Smuggler's missions.

Kavostov Halftrack:
Successfully complete Smuggler's Mission 27.

Kavostov Smoke Screen:
Successfully complete Smuggler's Mission 29.

Hint: Extended flight:
Unlock the Baja Truck and as its countermeasure (Bombs). Then, choose any level and enable the "Lighter cars" and "Unlimited countermeasures" codes. It also helps if you use the "Transparent car" code so you can see better. Press Select to zoom out once. Lay a bomb (while stationary), back up, and park over the top of the bomb. If done correctly, when the bomb explodes you will automatically stall and the truck will fly a great distance, sometimes going from one end of the map to the other. If this happens, your mph will probably go well over 200. This trick can be used to get to the remote island in Vietnam.

Glitch: Russia hideout:
In Russia, go to the yellow hideout. Go to the bigger room with the two separate sets of boxes. Go between them and turn to your left. You will do one of three things. You will either go through the wall in front of you and nothing else will happen; fall through the ground and have your engine get stalled and come back up;, or you will fall through the ground and keep falling for about fifteen seconds before flying out onto the mountain. After getting through all of these, you will be able to drive away.