Novice Avalanche Challenge:
To unlock the Novice Avalanche Challenge enter JAS3IKRR as a code.

Hard Avalanche challenge:
To unlock the Hard Avalanche Challenge enter 2AUNIKFS as a code.

Expert Avalanche Challenge:
To unlock the Expert Avalanche Challenge enter EATFIKRM as a code.

Extreme Avalanche Challenge:
To unlock the Extreme Avalanche Challenge enter 9AVVIKNY as a code.

8-Bit Soul Board:
To unlock the 8-Bit Soul Board get 9 Time Trial Coins with Ricky.

Backbone Board:
To unlock the Backbone Board get 9 Time Trial Coins with Tara.

Bad Cat Board:
To unlock the Bad Cat Board get 9 Time Trial Coins with Akari.

Conquest Board:
To unlock the Conquest Board get 9 Time Trial Coins with Rob.

Broken Forest Board:
To unlock the Broken Forest Board get 5 Time Trial Coins with Rob.

Cold Front Board:
To unlock the Cold Front Board get 5 Time Trial Coins with Kemen.

DNA Board:
To unlock the DNA Board get 5 Time Trial Coins with Tara.

Happiness Board:
To unlock the Happiness Board get 5 Time Trial Coins with Akari.

Mind Invasion Board:
To unlock the Mind Invasion Board get 5 Time Trial Coins with Ricky.

GCN Board:
To unlock the GCN Board get 2 Time Trial Coins with Rob.

Crime Scene Board:
To unlock the Crime Scene Board get 2 Time Trial Coins with Tara.