TNN MotorSports: HardCore 4x4 cheats and cheat codes for Playstation

Unlock asteroids mini-game
Go to the "Edit Names" option in time trial mode. Then, enter "DUTCHMAN" 
as a name. If the code is accepted, a face will appear. Then, select the 
"Credits" selection at the options menu to play with the mini-game.

Frog storm
Set the weather option to "Severe". Go to the "Edit Names" option in time 
trial mode. Then, enter "RAINFROG" as a name. If the code is accepted, a 
face will appear.

Hidden "Mother" truck
Go to the "Edit Names" option in time trial mode. Then, enter "MAINLINE" 
as a name. If the code is accepted, a face will appear.  Now you can 
access to the Pro and Extreme difficulty levels.

Game Shark Codes:
    
Car Select 
800B2614 00??
800B2614 0000 - Tree Killer                                 
800B2614 0001 - Fire Witch                                  
800B2614 0002 - Snow Spider                                 
800B2614 0003 - Canyon Snake                                
800B2614 0004 - Sand Blaster                                
800B2614 0005 - Shasta Cyclone                              
800B2614 0006 - Mother                                      
    
Track Select                                     
800B2628 00??
800B2628 0000 - Dynamite Pass                               
800B2628 0001 - Ground Zero Gulch                           
800B2628 0002 - Devil's Kitchen                             
800B2628 0003 - Mercurial Forest                            
800B2628 0004 - Hades Highway                               
800B2628 0005 - Arctic Inferno                              
    
Total Time is 00:00:00                           
801F3ACC 0000
    
Always on Lap 1                                  
801F53B4 0000
801F53B8 0000
    
Start on Lap 2                                   
D01F53B4 0000
801F53B4 0001
801F52B8 0001
    
Start on Lap 3                                   
D01F53B4 0000
801F53B4 0002
801F52B8 0002