Cheats for Test Drive: Off-Road 2 on PS1.
Note: This game is also called Test Drive 4X4.
Unlock all cars and tracks:
At the main menu hold Select and press L1, Left, L2, Right, L2, Left, L1, L1. If entered correctly you should hear a sound.
To enter cheat codes for the following bonus vehicles, start a Single Race or World Tour event. Pick a location and car, but at the transmission selection screen hold Select and enter one of the following button combinations. If entered correctly you should hear a sound.
L1, Up, L2, Down, Down, L2, L2, R2.
Drive a School Bus.
R1, L2, L2, Down, Down, Up, L2, L1.
Drive a Black Widow Truck (based on a ford Explorer).
R2, L2, L2, Down, Down, L2, L2, R1.
Drive an Ice Cream Truck.