At the main menu, press X, Y, L + X, X, L, Z, R + Y to unlock all characters, motorcycles, tracks, mini-games, and track editor options. -From: ScottGates31@msn.com and firstname.lastname@example.org
Get the "World's Longest Jump" trophy to unlock Cameron Steele.
Go to the Rock Ridge freestyle track. Go to the left until you notice the chair lift. Head downhill to the lower tower. Look for the stone ramp to the right (while still facing downhill). Get your speed up to about 45 mph, preload, and jump to the tower and stop on top of it. You must now travel up to the higher tower riding on the cables. When you reach the other side, will get the "Lift Tower Challenge" trophy and unlock Elrod the Viking.
Enter the Fox Creek freestyle course. Jump over the canyon via the ramp, but aim your jump to the left of the ghost town. After you land, continue going along the side of the buildings. You will soon should see an opening and lots of rocks. On the ground is one rock that looks like a two sided ramp. Go into the rock field about 75 to 100 feet. Floor it, swerving around several rocks and hit the ramp. Make sure you are heading toward the buildings. Hit the ramp and aim your jump so you land on the awning cowering the porch of the back of the building. There will be a small separation, but this will not cause any problems. Cross it and there will be a ramp on the other awning. Jump it and land on the roof with the hole in it. Go past the hole, turn around and you will see another ramp. Jump this one to get to the highest roof. This may take several attempts. After you land on the roof, position yourself so that when you jump the last ramp you land on the rock bridge. Jump down onto the ledge leading into an open mine shaft. Continue to follow this path until you reach Sal's UFO. Continue past the ship into the next room and you will see Sal, along with several companions, in suspended animation. You will get the "Find Out The Truth" trophy and unlock Sal as a playable rider.
Get the "Crane's Eye View" trophy to unlock Superfly.
Get the "World's Highest Jump" trophy to unlock the Custom Bee motorcycle.
Go to West Valley Freestyle in one player mode. Go down to the basement and go off one of the jumps. It will take you to a place on top. Follow the way then do the big jump at the end to complete the "Brave The Vertical Drop" challenge. The "Trophy awarded" message will appear and the Custom Cow motorcycle will be unlocked.
Get the "Dominate 250cc Pro Race Season" trophy to unlock the Custom Fish motorcycle.
Get the "Dominate 125cc Pro Race Season" trophy to unlock the Custom Playa motorcycle.
Get the "Dominate 250cc Pro Freestyle Season" trophy to unlock the Special Fire motorcycle.
Get the "Dominate 125cc Pro Freestyle Season" trophy to unlock the Special Tiger motorcycle.
Get the "Dramatic Entrance" trophy to unlock the Extra track editor barriers.
Get the "Impossible Stoppie" trophy to unlock the Extra track editor movable objects.
Get the "Impossible Wheelie" trophy to unlock the Extra track editor ramps.
Get the "Cross Training" trophy. To do this easily, participate in an exhibition race under the hard difficulty setting. Set the laps to "3" and opponents to "0". It is best to use a Super Cross Track because you will need a lot of jumps. Run the race and do tricks until you hit 5,000 points. You will automatically get first place because you are the only one on the track.
Get the "Safety First" trophy to unlock the Balloon toss mini-game.
Get the "Mega Stunt" trophy to unlock the Wheelball mini-game.
Contrary to what the CPU will do, you do not need to jump over the bar at all. You just need to reach its height level. To do this, rather than trying to jump over the bar and risk knocking it off, jump using the other two sides of the ramp and just air up next to it. You will know when you have reached the required height when you see your score appear at the top of the screen. All you have to do now is stick the landing.
Press Z in the air while using the Analog-stick to steer. You can do a Carmichael-style whip.
Go to any tutorial and complete it. Return to the tutorial menu and select any tutorial. Immediately before you begin, press Start and quit. You will get more money. Do this as many times as desired.