All Characters Unlocked
While at the Options Menu, choose 'Cheat' and enter 'NoHolds'.
Reset All High Scores, And Disable Cheats
BlankRecord - reset high scores
DisableThen - disable cheats.
Minimize All Characters' Stats
Type in FAIRPLAY to minimize them all.
Max Out All Characters' Stats
Type in ALLSTARS to max them all out.
All Concept Art
Type in ARTISTRY and get all art.
All The Ubertricks
Type in COMBOER and you will get all the ubertricks.
All Boards And Skis
Type in SPORTSHOP and you will get all the boards and the skis.
Type in MASTERKEY to get all tracks.
Type in "FullGasTank" for a never ending grove
Unlock All Peaks/Tracks
Go to options menu, select cheats, and enter MasterKey.
Unlock Yeti Costume
While at the Options Menu, choose 'Cheat' and enter 'WildFur'.
Unlock All Clothes
While at the Options Menu, choose 'Cheat' and enter 'ClothShop'.