Hidden track:
Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "monster.ini" file in the "system" sub-directory in the game directory. Edit value on the "showHiddenTrack" line to "666".

Bonus track:
Reach the fourth checkpoint on the Sidewinder Canyon track. Pass the bridge and quickly turn right when passing through the barricades on the right side. Drive along the dirt road and stop after the first bridge. Turn right to reach another bridge and drive until it ends. A checkpoint labeled "Pit" will appear. Enter that checkpoint to enable the bonus track.

Hockey game:
There is a large lake with two goalposts set in the water just past checkpoint two in Breakneck Ridge. Get into the cockpit mode and drive into the middle 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.


Drive-in theater:
Drive on the Scrapyard Run track and drive until reaching a set of railroad tracks. Turn left at the tracks and follow them until the drive-in movie theater appears on the right.


Major air:
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. You will not get any air if the train pushes you.


Train bump:
Set your truck up with shallow cut tires, transfer gear on (all the way), more speed, and soft suspension. Chase the train on any track and you should eventually catch up and bump it from behind. You will need to reach up to at least 60 mph to drive the same speed as the train, and get up to 80 mph in the final run.


Swearing:
Go to Farm Road 29 and drive through the fences and up to the barn. Turn up your sound to hear a man yelling "Hey bitch, get off my lawn".


Getting air on Farm Road 29:
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, drive head on with the train.