Go BACK!
To use Jazz JackRabbit's cheat codes, press P,(this will pause the game)then press
BACKSPACE. After you have done this, type in any of these codes for the desired cheat.
BOUF=Temporary God Mode
SABLE=Speed
HOOKER=Bonus level at the end
of current level
GUNHED=Big Guns Mode
CSTRIKE=Airboard
TIM=Something
really weird.