Press Triangle, L1, Triangle, R1, Triangle, L2, Triangle, R2 at the main menu.
All cars
Press Triangle, L2, Triangle, R2, Triangle, L2, Triangle, R2 at the main menu. Alternately, press Square, Up, Down, Right, Left, X, Circle, Square while the main screen is loading.
All cities
Press Triangle, L1, Triangle, L1, Triangle, R1 at the main menu.
Alternate colors
Press Down, Square, Down, R1, Right(2), Up, Left, Circle(2), L2, L1 at the main menu, then begin game play.
Better control
When you start, do not drive with the Analog-stick. This will help you stop wiggling all around the lanes.
Black Widow car (Plymouth Prowler)
Collect all coins in Tokyo level 3.
Fang car (Mazda MR2 Spyder)
Collect all coins in London level 4.
Froggy car
Collect all coins in Rome level 3.
Game Over in Free Roam Mode
This is a glitch more than anything, which can be performed using a fast car only. Firstly, go to London. Where you see the two bridges, go as fast as you can and drive into the wall. You'll eventually fall down to nowhere in the ground and it will take you to the Game Over screen.
Level skip
Press Up, Down, Up, Down, Left, Right, Left, Right, Up, Left, Down, Right at the main menu.
Motion blur effect
Press Up, Left, Circle, Down, Right, Square, Up, Down, Left, Right, Circle, Square. A "Blur" setting will appear on the options screen.
P-nut car (Mini Cooper)
Collect all coins in Rome level 2.
Portabello car (Lotus Elise)
Collect all coins in Tokyo level 1.
Ricochet car (Audi TT)
Collect all coins in London level 3.
Road Shark car (Honda S2000)
Collect all coins in London level 5.
San Francisco: Big air
Choose the San Francisco level in multi-player mode. Have one player drive under the tunnel and stop at the ramp. Sit on the hill near the top and have the other player drive at high speed and hit the first player. You will ramp on them and go flying. If you go high enough and over the side, your screen will show the bottom of the road and your friend's tire.
Street Eagle car (Porsche 911)
Collect all coins in Tokyo level 2.
Super Genius car (Smart Car)
Collect all coins in London level 1.
The Geeze car
Collect all coins in Rome level 1.
Turtle car (VW Beetle Convertible)
Collect all coins in London level 2.
Win single player mode
Press Triangle, L2, Triangle, R2, Triangle, L1, Triangle, R1 at the main menu.
