Cheats and Unlockables: New modes, matches and characters.
Cheat: Extreme Characters
Enter the following code on the options screen: 9AVVIKNY to unlock the final Challenge and Avalanche in Extreme mode. By completing Extreme Mode you unlock a different secret character for each boarder. For instance, beating it with Rob Haywood unlocks the character "Bones Haywood", a skeleton pirate snowboarder.
Cheat: Final Challenges
You can jump right to the timed final challenges in the game's Match Race mode. To do so, enter the following codes at the options screen:
Novice Final Challenge
Track Name: Sub-Zero Assault: Spinal Damage
Hard Final Challenge
Track Name: Sub-Zero Assault: Ballistic
Expert Final Challenge
Track Name: Avalanche Alley: No Way Out
Extreme Final Challenge
Track Name: Avalanche Alley: No Way Out (Mirrored)
Unlockable: Extreme Match Race
To open up a hidden match race mode, "Extreme", beat all three standard difficulty levels. Once you have beaten Avalanche Alley: No Way Out, the Hard final challenge, wait for the credits to finish. The extreme course will now appear on the Match Race main screen.