While playing the game in Single Player mode, press ~ to display the console window. Then, type one of the following codes and press [Enter] to activate the corresponding cheat function:

Code - Effect

help - List All Console Commands
tank.speed [0 or 1] - Set Tank Speed
tank.carsteering [0 or 1] - Toggle Car Type Steering
tank.easydriving [0 or 1] - Toggle Easy Driving
tank.ammo [0 or 1] - Toggle Infinite Ammunition
tank.immortal [0 or 1] - Toggle Invincibility
tank.activate [0 or 1] - Toggle Tank Debug Interface