When starting the level, turn around and go up the road. Stop at the top. Then go down the hill at full speed. When you hit the first jump, hold CURSOR DOWN while in mid air. When you land you will be doing a wheelie. You must hold CURSOR DOWN the entire time to get it. Your speed must also be at 2000 acceleration (Garage). Note: You will hit another jump so hold CURSOR DOWN the entire time until you land on all four wheels.
Go on the Scrapyard Run track and find any part of the train tracks. Sit on them until the train goes through you. Make sure your wheels are lined up on the tracks. Note: You will not get any air if the train pushes you.
There is a huge lake with two goalposts set in the water just past checkpoint two in Breakneck Ridge. Get into the cockpit mode and drive into the center of the lake. There is a hockey puck that looks like a tire at the bottom of the lake. Drive it around and through the goals. Note: Set the weather to "Snow" to have the puck appear on the ice.
Note: This procedure requires editing a game file; creating a backup copy of the file before proceeding is recommended. With a text editor, edit the "monster.ini" file in the "system" sub-directory in the game directory. Edit value on the "showHiddenTrack" line to "666".
-Go to Farm Road 29, make the camera see inside your truck, then get on the tracks. Set to four wheels, get your wheels straight on top of them, and drive head on with the train.
-Just before reaching the fourth checkpoint you will see a big dirt mound, immediately before you go under the bridge. To be able to hit it and get massive air you need to back up very away from it. Note: This works with any truck.
Go to any track and call for the helicopter. When the helicopter puts you in mid-air, immediately press the button twice. You will go higher than the ground. Keep doing this repeatedly and you will go so high in the air that you see that the image is stretched far off the screen. When done, quit the helicopter and release your truck. You will note that when you hit the ground your suspension system really works.