Punisher truck
Press [C-Down] at the vehicle selection screen.
4x4 Monster truck
Press [C-Up] at the vehicle selection screen.
The Crusher truck
Press [C-Right] at the vehicle selection screen.
Flagstaff track
Hold [Left] and press the [L] at the track
selection screen. An air wrench sound will confirm correct code
entry. Highlight the Mojave track and press [Z] + [A]
to start.
Quick start
Press [A] at the starting line, just before the
word "Set" fully disappears from the screen.