Jazz Jackrabbit Cheats

Press P to pause game, and press BACKSPACE before each code:

sable - Gives you super speed
bouf - Gives you temporary invincibility
bad - Gives you the bird
cstrike - Gives you air board
lamer - Skips level
hocus - Transports you (only if enemy is below or above you)
gunhed - Gives you all weapons, with 100 rounds of ammo and 5 T.N.T. sticks
hooker - Bonus level
ddbouf - God mode

Screen Shake mode
At any time during the game, type in ARJAN on the keyboard. "HAHAHA" will be displayed onscreen, and the screen will shake until you exit the program.

Boss Key (exits to DOS, but leaves the game open)
Type "KEN" at any time during the game.