Access all Tracks:
Go to the Options screen and set the Difficulty to Amateur. Then set the Trophy presenter to male. Then return to the Main Screen by pressing Start and enter the following on the player 1 pad: up, right, down, left, up, right, down, left.
Now return to the Options screen by going left once and pressing X. Then set the Difficulty to Proffesional. Then set the Trophy presenter to Riders choice. Then return to the main screen by pressing Start and enter the following on the player 1 pad: up, left, down, right, up, left, down, right. (opposite the first)
View "Win Race" Screen:
On the options screen change the difficulty to Amateur, turn off turbos, and turn off grapples.
Now select Credits while holding L1 in the controller. You can cancel by pressing triangle.
View all endings:
On the options screen change the difficulty to Amateur, turn off turbos, and turn off grapples.
Now select Credits while holding L2 in the controller.
At the "code enabled" screen (see easier tricks) for the following enter:
Rocket Racer
triangle, up, up, L2, L2, up, up, up.
Show-off Cameras
triangle, down, square, triangle, L1, L1, R1, R1.
Super Agility
down, circle, left, L1, left, right, left, right.
Two-player Mode w/ other bikes
circle, square, R2, circle, triangle, L2, right, up.
You and a friend can now compete against a total of 20 bikes!
Unlimited Turbos
triangle, circle, right, R2, up, square, up, triangle.
Zero Resistance
square, L1, triangle, right, L1, down, R2, triangle.
Ice Racing
up, R2, R1, right, L1, square, right, right.
Air Brakes
R1, R2, right, L2, up, circle, up, circle.
Double Stunt Points
right, up, circle, L2, triangle, circle, R1,R2.
Easier Tricks
down, circle, left, right, left, right, left, right.
Screenshots