Off-Road Challenge Cheats - Nintendo 64

Punisher truck
Press [C-Down] at the vehicle selection screen.

4x4 Monster truck
Press [C-Up] at the vehicle selection screen.

Thunderbolt truck
Press [C-Left] at the vehicle selection screen.

The Crusher truck
Press [C-Right] at the vehicle selection screen.

El Cajon track
Hold [Up] and press the [L] + [R] at the track selection screen. An air wrench sound will confirm correct code entry. Highlight the El Paso track and press [Z] + [A] to start.

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.

Guadalupe track
Hold [Down] and press [R] at the track selection screen. An air wrench sound will confirm correct code entry. Highlight the Vegas 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.

Extra money and nitro
Start a game in two player mode. Have both players keep trying to turn around. After about three minutes of turning around, drive down the road. There will be extra money and nitro.