Enter the following codes at the cheat codes screen:
Change pick-up icons: Enter JUST FOR STEVE
Easier Test Of Strength mode: Enter SORE FINGER
Empty Superpower meter: Enter JOR EL
Explore Metropolis mode: Enter WANDERER
Hardest difficulty: Enter NAILS
Infinite health: Enter FIRST AID
Infinite Superpower meter: Enter JUICED UP
Low resolution graphics: Enter PEA SOUP
Master code: Enter I WANT IT ALL
No time limits: Enter STOP THE CLOCK
Reversed controls: Enter SUPERMAN
Slow motion: Enter SLOW MOTION
Tomato soup mode: Enter TOMATO SOUP
Unlock all character biographies: Enter INTERVIEW
Unlock all intermission: Enter POPCORN
Unlock all level attack mode stages: Enter SIGHTSEEING
Unlock Clark Kent: Enter SECRET IDENTITY
Unlock Parasite: Enter FEELING DRAINED
Extras in options: Enter FEATURE
Extras in Explore Metropolis mode:
Enable the "Extras in options" cheat, then enter CREEP at the cheat screen
Reversed display:
Enable the "Extras in options" cheat, then enter DOWN UNDER at the cheat screen
Different credits:
Enable the "Extras in options" and "Extras in Explore Metropolis mode" cheat,
then enter SGKEL341 at the cheat screen
Silent Movie mode:
Enable the "Extras in options" cheat, then enter RETRO at the cheat screen
Underwater mode:
Enable the "Extras in options" cheat, then enter WIBBLE at the cheat screen
