All character biographies
Enter INTERVIEW at the cheat codes screen at the options menu.
All intermission sequences
Enter POPCORN at the cheat codes screen at the options menu.
All level attack mode stages
Enter SIGHTSEEING at the cheat codes screen at the options menu.
Alternate credits
Enter SGKEL351 at the cheat codes screen at the options menu. Note: Enable the "Extras in options" and "Extras in Explore Metropolis mode" codes first.
Disable time limits
Enter STOP THE CLOCK at the cheat codes screen at the options menu.
Down Under mode
Enter DOWN UNDER at the cheat codes screen at the options menu. Note: Enable the "Extras in options" and "Extras in Explore Metropolis mode" codes first.
Easier Test Of Strength mode
Enter SORE FINGER at the cheat codes screen at the options menu.
Empty Superpower meter
Enter JOR EL at the cheat codes screen at the options menu.
Explore Metropolis mode
Enter WANDERER at the cheat codes screen at the options menu.
Extra hard difficulty
Enter NAILS at the cheat codes screen at the options menu.
Extras in Explore Metropolis mode
Enter CREEP at the cheat codes screen at the options menu. This unlocks the shooting gallery and item hunt challenges in Explore Metropolis mode.
Extras in options
Enter FEATURE at the cheat codes screen at the options menu.
Master code
Enter I WANT IT ALL at the cheat codes screen at the options menu.
Play as Clark Kent
Enter SECRET IDENTITY at the cheat codes screen at the options menu.
Play as Parasite
Enter FEELING DRAINED at the cheat codes screen at the options menu.
Reversed controls
Enter SUPERMAN at the cheat codes screen at the options menu.
Silent Movie mode
Enter RETRO at the cheat codes screen at the options menu.
Slow motion
Enter SLOW MOTION at the cheat codes screen at the options menu.
Unlimited health
Enter FIRST AID at the cheat codes screen at the options menu.
Unlimited Superpower meter
Enter JUICED UP at the cheat codes screen at the options menu.
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