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Playstation - Crisis City cheats

Unlock Extra option
Press Up, Down, Left, Right, X, Circle at the title screen to unlock 
"Extra" option. You can play the game with new enemies in different 
enemy positions in this mode.

Secret area 7
Select a character in versus mode. After that, highlight the random 
option on the area selection screen, hold L2, and push the Circle 
button on your controller.

Secret area 6
Select a character in versus mode. After that, highlight the random 
option on the area selection screen, hold L1, and push the Circle 
button on your controller.

Crisis City Game Shark Codes:

Unlimtied HP 
89000D23 FF00
        
Maximum Power   
298800D0 FF00