Cheat Mode
In the "Fortess of Solitude" enter one of the following codes:
[Left], [Y], [Right], [X], [Down], [Y], [Up], [Down], [X], [Y], [X] - All Powerups
[Left], [Up], [Right], [Down], [Y], [X], [Y], [Up], [Right], [X] - All Unlockables
[Up], [Up], [Down], [Down], [Left], [Right], [Left], [Right], [Y], [X] - God Mode
[Y], [Right], [Y], [Right], [Up], [Left], [Right], [Y] - Infinite City Health
[Up], [Right], [Down], [Right], [Up], [Left], [Down], [Right], [Up] - Unlock Bizarro
Fast Traffic and Model Change codes
Enter the codes at the in-game pause menu using the D-Pad for directionals. Deactivate model-change codes by reentering the same code as the one that was most recently entered.
For the Fast Traffic code, if you hear a kitten meow, you entered the code correctly. For the Model Change codes, if you hear glass breaking, you entered the code correctly. If you enter the code and do not hear the appropriate activation sound effect, press [Start] and then press [Start] again to exit and reenter the Pause menu.
[Right], [Up], [Y], [Y], [Up], [Right], [Down], [Up], [X] - Fast Traffic
[X], [Y], [X], [Y], [Left], [Up], [Right], [Down] - Model Change: Ice Machine
[X], [Y], [X], [Y], [Up], [Right], [Down], [Left] - Model Change: Modern Phone Booth
[X], [Y], [X], [Y], [Up], [Down], [Right], [Left] - Model Change: Potted Plant
[X], [Y], [X], [Y], [Up], [Down], [Left], [Right] - Model Change: Vending Machine 1
[X], [Y], [X], [Y], [Up], [Left], [Down], [Right] - Model Change: Vending Machine 2