Cheat menu
At the main menu, highlight the "Options" selection, then hold L + R + X + Y to display a cheat menu at the bottom of the screen.

Venom car
Collect all the silver coins in stunt mode to unlock the Venom car.

Stunt track 2
Get 100,000 points in stunt mode to unlock stunt track 2.

Stunt track 3
Get 200,000 points in stunt mode to unlock stunt track 3.

Stunt track 4
Get 400,000 points in stunt mode to unlock stunt track 4.

Obstacle course
Get 1,000,000 points in stunt mode to unlock the obstacle course.

Battle mode track 5
Get 100 kills in battle mode to unlock track 5.

Battle mode track 6
Get 250 kills in battle mode to unlock track 6.

Random battle mode weapons
Hold L + A and press X, Y. Then release the buttons, hold R + A and press X, Y.

Battle arena 8
Get 1000 kills in battle mode to unlock battle arena 8.

Quick start
This trick assumes the game is under the default controller setting. Hold L during the pre-race countdown in race mode. Release L and hold R when the countdown reaches "3". Release R and hold L when the countdown reaches "2". Release L and hold R when the countdown reaches "1". If done correctly, your car will get a faster start.

Unlock The Warehouse
To unlock the Warehouse stunt track, you must earn an accumulated score of 500,000 points in Stunt Mode. This may take you a couple of days; the points are cumulative though. To view you points, got to the main menu and select "Records". Now look for your track and it'll tell you how many points you have.

Unlock The Oasis
To unlock the Oasis stunt track, you must earn an accumulated score of 250,000 points in Stunt Mode. This may take you a couple of days; the points are cumulative though. To view you points, got to the main menu and select "Records". Now look for your track and it'll tell you how many points you have.

Unlock Euro Lx
Collect 24 gold coins in Stunt Mode to unlock Euro Lx.

Unlock GX-2
Collect half of the Gold Coins in Race Mode to unlock the GX-2.

Unlock GX-2
Collect half of the Gold Coins in Race Mode to unlock the GX-2.

Unlock MINI XS
Collect 36 Gold Coins in Race Mode to unlock the MINI XS.

Unlock MINI XS
Collect 36 Gold Coins in Race Mode to unlock the MINI XS.