Immediately after starting, take a sharp right. Turn your rider over so you are behind the Smith pads (in front of the fence). Now put in the clutch. Hold Analog-stick Back, hit the gas, release the clutch (so you do a wheelie), and head straight into the fence. If done correctly, you should go through the fence, onto the other side. Go to your right, move around the barn, and go under the bleachers. You will see what appears to be the edge of the world to the right. If you keep going forward under the bleachers, you will get stuck and do a huge bail. Also, if you go to the left after you went through the fence and under the bleachers, you can find some huge hills. Note: This takes a lot of time and practice.
Custom Bee motorcycle
Get the "World's Highest Jump" trophy.
Custom Cow 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 you unlock the Custom Cow motorcycle.
Custom Playa motorcycle
Get the "Dominate 125cc Pro Race Season" trophy.
Easy height in Step Up event
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.
Easy money
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.
Elrod the Viking
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.
Extra track editor barriers
Get the "Dramatic Entrance" trophy.
Extra track editor movable objects
Get the "Impossible Stoppie" trophy.
Extra track editor platforms and Station Z
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.
Extra track editor ramps
Get the "Impossible Wheelie" trophy.
Flat land jumping
Do not move at all. Hold the R + L + A and pull back as if you are going to wheelie. Once the preload is almost full, release L but still hold the other buttons. You should jump off the ground and be able to pull off small tricks, like Heel
Clickers and No Handers.
Ghost ride your bike
Make sure you are not moving and are on a flat surface. Then, hold the Gas + R and pull back to do a wheelie until you jump off the ground slightly. Once you are airborne, release everything. Make sure your front end is higher then your back end. Just before you hit the ground, press R + L + Z to bail off your bike. If done correctly, your rider will fall off the back of the bike. The bike should land flat or do a wheelie and then land flat and ride away. The bike should move about 50 feet away, then fall over. Note: It helps if you hold the gas before you bail off the bike.
Off the edge !!! glitch
Okay, this trick is very difficut and tough so dont try it if your not ready. Go to freestyle on the main screen and choose rockridge when you startturn right to the danger do not enter sign. hit the rock thats there but land on the giantrocks right after it. then do foward a little and go toward the chairlift pole and go past it and keep climbing. when your past the chairlift pole go left down a big hill.when you get to the end the train tracks should be right infront of you and down. look to the right and the should be a hill over where the train tracks go under ground. jump from the gap over the train tracks on to the hill and hold A if it works you should head straight then right then straight again and you should jump off the edge of the course and it is a big fall but you do hit grond
note: this took me 4 days to master so it is tough.
Sal the Alien
Go to Fox Creek, jump through the fence, across the canyon, and into the ghost town. Pull up next to the church and bunny hop into the graveyard (hold Clutch, Rev Motor, Preload suspension, hold Back, release Clutch and Preload when the suspension is loaded to the max). From the grave yard, jump to the lower roof platform covering the doorway to the first shop. Continue jumping from roof to roof until you get to the end. From there, jump to the back of the building's roofs that you were just on. The last ramp will take you up to a rock land bridge (very difficult to land). Jump from the land bridge down to a ledge leading to an open mine shaft. Follow this passage into the military base and down to Sal's spaceship. Finally run past the ship to a room where Sal is being held in suspended animation to get the "Find Out The Truth" trophy and unlock Sal the Alien as a playable rider.
Special Fire motorcycle
Get the "Dominate 250cc Pro Freestyle Season" trophy.
Special Tiger motorcycle
Get the "Dominate 125cc Pro Freestyle Season" trophy.
Superfly
Get the "Crane's Eye View" trophy.
Unlock everything
Enter this code at the title screen to unlock everything: X, Y, L+X, X, L, Z, R+Y.