Put the 'CAPS LOCK' on and type any of the following:
"KYLIE"----------------For the australian version
"CHEDDAR"----------------------For infinite lives
"SKIPPY"---------------------Makes enemies bounce
"MAY THE FORCE BE WITH YOU"--For infinite stamina
"THE TERMINATOR"-------------Explode when you die
"MONTY PYTHON"-------------Enemies walk backwards
"A SMALL STEP FOR MAN"---------------Moon gravity
"STEVE AUSTIN"----Press 'S' to toggle slow motion
"WARP FACTOR ONE MR SULU"--Level skip press '1-6'
"GENESIS OF DALEKS"---------Photo negative screen
"OPEN THE POD BAY DOORS HAL"---Infinite shurikens
"SNOW WHITE"----------------Ninjas become dwarves