Unlock better engine:
Finish time attack mode once
Boost at start:
When you see 1 during the pre-race countdown, press X.
Unlock all vehicles, upgrades and tracks:
First go to the options screen hold Square and press
Up, Circle, Down, Circle, Left, Right, Left, Right, Circle.
This will open a new "Secret" menu. Start a single player game and type
in NORTHEND as your name. This will open another menu under secret
called "Top secret".
Unlock all vehicles, upgrades and tracks (japanese version):
Go to the main menu, the choose "Options" tab. Press and hold SQUARE,
after press UP, TRIANGLE, DOWN, TRIANGLE, LEFT, RIGHT, LEFT, RIGHT, TRIANGLE.
If the code is accepted, you should see the bar "SECRET" below "Reset Options"
in the options menu. Go back to main menu, and enter "NORTHEND" as a name.
If you typed the cheat code correctly, you should hear: "Wild Wild Racing!"
Go back to the Main-Menu, choose "Options", after select "SECRET".
and finally select "TOP SECRET".
