Summer track:
Hold R1 and press Triangle, X, Circle(2), X, Triangle at the main menu. The screen will flash to confirm correct code entry. Select the Calgary track to race on grass.

Cartoon track:
Hold R1 and press Right, Up, Left, Circle, Triangle, Square at the main menu. The screen will flash to confirm correct code entry. Select the Kiruna track to race with cartoon-style graphics.

Race an ATV:
Hold R1 and press Up, Right, Down, Up, Right, Down at the main menu. The screen will flash to confirm correct code entry. Select any sled to race on an ATV.

Race a Go Cart:
Hold R1 and press Right(2), Left(2), Right(2) at the main menu. The screen will flash to confirm correct code entry. Select any sled to race on a Go Cart.

All leagues, tracks, and sleds:
Hold R1 and press Up, Triangle, Up, Triangle, Up, Triangle at the main menu. The screen will flash to confirm correct code entry.

Demonstration mode:
Hold R1 and press Up(3), Down(3) at the main menu. The screen will flash to confirm correct code entry.

Hill climb, more snowmobiles, more tracks:
Win the 500cc class to unlock the hill climb, more snowmobiles, and additional tracks. Note: You can finish first in at least two races and second in the other two races.

Hint: Jump moves:

Butt Wiggle: Press Down, Up.
In Your Face: Press Left, Right.
Superman: Press Up, then hold Left.