By: 

   Release date: 

Hard Core 4x4

   The codes.

   In time trial mode, you can use these driver name codes.

 DUTCHMAN          Go to the credit screen to play Roids.
 MAINLINE          Gain the "Mother" truck.
 RAINFROG          Switch the weather to daytime severe to rain frogs.

   At the main menu.

 HCTRUCTS          All Trucks