ATV Quad Power Racing 2 Cheats for GameCube

When you get a Gold medal in Challenge mode one of the following riders will become unlocked.
Achieve Gold medals in Challenge mode Shane Hitt (Star)
Achieve Gold medals in Challenge mode Johnny Hale (Star)
Achieve Gold medals in Challenge mode Jasmin Plante (Star)
Achieve Gold medals in Challenge mode Doug Gust (Superstar)
Achieve Gold medals in Challenge mode Tim Farr (Superstar)
Achieve Gold medals in Challenge mode Jason Luburgh (Pro)
Achieve Gold medals in Challenge mode Kory Ellis (Pro)
Achieve Gold medals in Challenge mode Keith Little (Pro)
Achieve Gold medals in Challenge mode Dana Creech (Master)
Achieve Gold medals in Challenge mode Jeremiah Jones (Master)
A..

Unlock all challenges
Enter "DOUBLEBARREL" as a rider name on the new profile screen.
Unlock all riders
Enter "BUBBA" as a rider name on the new profile screen.
Unlock all tracks
Enter "ROADKILL" as a rider name on the new profile screen.
Unlock all tricks
Enter "FIDDLERSELBOW" as a rider name on the new profile screen.
Unlock all vehicles
Enter "GENERALLEE" as a rider name on the new profile screen.

When you reach a 'never-before-seen' track during the course of Career or Arcade mode and complete that track in either mode you will earn the ability to use that track.
Beat it in Career or Arcade mode Glacier (Cave Pass)
Beat it in Career or Arcade mode Dunes (Rocky Trail)
Beat it in Career or Arcade mode Works (Quarry Pass)
Beat it in Career or Arcade mode Dunes (Lighthouse Bay)
Beat it in Career or Arcade mode Swamp (Mangrove Trail)
Beat it in Career or Arcade mode Swamp (Alligator Pass)
Beat it in Career or Arcade mode Forest (Big Bear Pass)
Beat it in Career or Arcade mode Works (Industrial Trek)
Beat it in Career or Arcade mode Forest (Waterfall Pass)
Beat it in C..

Complete the ATV Academy Training and Trick Training to unlock the Dimension and Viper ATVs. Win over 8 races in Arcade mode to unlock the ATC ATV.

On atv 2 just enter "goldrush'' for gamecube

Bonus ATVs:
Complete the ATV Academy training and Trick training to unlock the Dimension and Viper ATVs. Win more then eight races in Arcade mode to unlock the ATC ATV.

This is a cool glitch that I discovered a long time ago. Go to the area made for doing tricks in. Get to the area next to the audience. Drive around in a clock-wise direction. Run over all of the grates untill you wreck. If you are lucky you will be in a wierd place. Please Rate!

When you turn on ATV make a new profile and choose the rider that has bikini-like clothes on. Name her SeeJoGo. When you race make sure you are at Dunes Lagoon and choose the ATV Blaze. When you are in the race and have just gone off a jump and are in the air tilt backwards until your rider falls off and she will be topless and the lower part will be blurred.

While riding get closs to the computers and press z and kick them of the bike and then press x to do a speed boost

1. While driving do not go near other player.2. When in low air do not do tricks

BUBBA - Unlock all Riders.
GENERALLE - Unlock all Vehicles.
ROADKILL - Unlock all Tracks.