Do a wheelie. Preload while doing the wheelie and release Powerup. You will do a backflip without going off a jump.
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.
Easy Turbo
When going off a huge jump do a 360 by pushing the direction stick right or left and do two tricks while doing the 360 degrees move. The better the tricks the better the boost.
Get Everything
Enter the following as a profile name: GOLDRUSH - unlock everything.
Master Codes
Use the following codes as your profile name:
Code - Effect
REDROOSTER - get championships
DOUBLEBARREL - get challenges
ROADKILL -unlock all tracks
BUBBA - unlock all riders
GENERALLEE - unlock all atv's
FIDDLERSELBOW - get all tricks
GINGHAM - max out stats ( skill level )
Quick turn
When going fast and are trying to turn, use the speed boost while turning. The bike will seem to jump forward.
Super flips
Go to the freestyle level. Get your boost all the way up. Start going around the course to get speed. If you choose to use the loop as your take off, you need to boost all the way around it. Another good ramp to use is the one that is sort of under an elevated ramp; you will not need boost. To do many flips, choose your ramp and get speed. When you are about 20 feet away from the take off, hold Analog-stick Down. Keep it held and when you get to the peak of the take off, you will do many flips.