During play or on the title screen, press the 'CAPS LOCK' key and enter any of the following:
"LIVES*"-------------------For infinite lives
"CREDITS*"---------------For infinite credits
"LEVEL*"------------To skip to the next level
"MEMORY*"-----------------Shows memory useage
"WEAPON*"-----------------For the best weapon
"KYLIE*"--------------------------------?????
"IMMUNITY*"-----------------For invincibility
"HIGHLIGHT*"--Turns you an your enemies white
"STAMP*"------------------------Leave a trail
"UPSIDE DOWN*"---------------Play upside down
The * after each word means press any key on the keyboard. After you have typed the cheat and then pressed any key, the top of the screen will flash blue. To disable the cheat just type it again and press any key. The top of the screen will now flash red.
The following cheats only worked on some versions:
Press the 'CAPS LOCK' key and type "DECAFFEINATED" followed by 'RETURN'. The top of the screen should scroll, to let you know you have infinite lives.
With the caps key on, type any of the following during play.
"I HATE THE RADION ADVENT"
"SOMETHING SPOCK BUILT"
"THE GNOME AT HOME"
"WE LOVE THE PUNTENTAY"
On the Skid Row pirated version: Hold down the Left Mouse Button and Fire Button until game loads for unlimited lives.