Cheat Codes
To unlock the following cheats use the code shown as your profile name :

Max Stats: GINGHAM
Unlock All Challenges: DOUBLEBARREL
Unlock All Riders: BUBBA
Unlock All Tracks: ROADKILL
Unlock All Tricks: FIDDLERSELBOW
Unlock All Vehicles: GENERALLEE
Unlock Champ: REDROOSTER

Bonus ATVs
Successfully complete the ATV Academy Training and Trick Training to unlock the Dimension and Viper ATVs. Win over eight races in arcade mode to unlock the ATC ATV.

Fast start
At the beginning of a race, pop a wheelie to get an early jump on the competition.

Quick Turn
When going fast and are trying to turn, use the speed boost while turning. The bike will seem to jump forward.

Backflip Without Going Off Jump
Do a wheelie. Preload while doing the wheelie and release Powerup. You will do a backflip without going off a jump.