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.
Extras in options
Enter FEATURE at the cheat codes screen at the options menu.
Silent Movie mode
Enter RETRO 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.
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.
Master code
Enter I WANT IT ALL at the cheat codes screen at the options menu.
Unlimited Superpower meter
Enter JUICED UP at the cheat codes screen at the options menu.
Reversed controls
Enter SUPERMAN at the cheat codes screen at the options menu.
Disable time limits
Enter STOP THE CLOCK at the cheat codes screen at the options menu.
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