Type in During a Race:                                                   
 

 
drag: Unlimited turbo boost
dread: Unlimited ammo        
drink: Rocketfuel
drub:  No damage
drug: Mushroom effect

Type in at the Menu:                                                                         
 
 

draw: Get $1000
drive: Get 10 points (registered version)
drool: Get $500000
                                    

  

PS: Enter your name as Duke Nukem to get armor equal to what Duke Nukem has in Death Rally