Master code:
Enter GOLD DUST as a profile name to unlock all riders, ATVs, tracks, and bonuses.

All riders:
Enter BUBBA as a profile name. A message will confirm correct code entry.

All ATVs:
Enter GENERALLEE as a profile name. A message will confirm correct code entry.

All tracks:
Enter ROADKILL as a profile name. A message will confirm correct code entry.

All tricks:
Enter FIDDLERSELBOW as a profile name. A message will confirm correct code entry.

Maximum stats:
Enter GINGHAM as a profile name. A message will confirm correct code entry. Note: This also increases the stats of your opponents.

Champs:
Enter REDROOSTER as a profile name. A message will confirm correct code entry.

Challenges:
Enter DOUBLEBARREL as a profile name. A message will confirm correct code entry.

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.

Hint: Super flips:
Use the following trick to do three or more flips on the ground. First, do a wheelie then keep it held. Hold Preload (R), and when it is full, release it. While holding Analog-stick Back, you will do three or more flips.