Various cheats (submitted by Master)
     Go to Options/Cheat Codes and enter one of the following codes :

Cheat code:        Effect:
starlite           hallucinating view
howhardcanitbe0    Difficulty adjust (0 = easiest, 9 = most difficult)
starpower          Gun (key F by default) and no damage
leatherandlace     Gun, rocket launcher (keys F and H) and no damage
upupdowndown       Unlock all cities, vehicles and modes (arcade only)
theparrot          Unlock all modes
griswold           Unlock all cities
octane             Nitrous
yerbamate          Unlimited Nitrous
rimbuk             Unlock all cities, vehicles and modes (arcade only)
howfastcanitbe0    Speed adjust (0 - 9)
tumbler            ??????
aquaspark          ??????
quickFix           ??????
operationdoom      ??????
happyhour          ??????