High Velocity

Obstacle Course
On the mode select screen highlight each mode and press B. After you do the last mode the screen will cycle through each mode and flash. Highlight the Time Trial Mode and press X. Hold down the X button and press A. Select your car and the first course. You should then be on an obstacle course.

Tractor Trailer Truck/Porsche from Brian
Start the game in (KING BATTLE) then at the car select screen press (RIGHT) until you hear a beep.Press The TOP TWO buttons and (Y)and press (RIGHT) again and you'll have a (Porsche)! Do the same thing again and have a (TRACTOR TRAILOR TRUCK)