Unlockable: All Sleds
At the Main Menu, go to the Options menu. Then go to Cheat Codes. Enter RIGHT TRIGGER, X, LEFT TRIGGER, DOWN, RIGHT, LEFT BUMPER, LEFT TRIGGER, RIGHT TRIGGER, Y, X.
Unlockable: Get the Helicopter
You must get a 1,000,000 point combo.
Unlockable: Greater Snow God
You must get a gold medal on ever challenge
Unlockable: King of the Mountain Lab
You must impress the required amount of bystanders in DC.
Unlockable: Laax Stock & Barrel
You must impress the required amount of bystanders in Laax.
Unlockable: Lesser Snow God
You must get a medal on every challenge.
Unlockable: Northstar Nirvana
You must impress the required amount of bystanders in Northstar.
Unlockable: Rescued Weiner Boy
You must complete Act 3 of the story.
Unlockable: Snowbird Bound
You must complete Act 1 of the story.
Unlockable: Snowbird Dawg
You must impress the required amount of bystanders in Snowbird.
Unlockable: Vamonos a South America
Complete Act 2 of the story.
Unlockable: Hang Glider slide
You must finish the story mode.