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Playstation - Mobile Suit Z Gundam cheats

Select any stage:
Hold Left + Select + R1+ L2, then push Start, during the intro. 
Release the Start button and keep the other buttons held.

Mobile Suit Z Gundam Game Shark Codes:
                    
Unlimited Time   
800C4FC4 0000
                    
Unlimited Gun    
800C82F4 0063

Unlimited Energy 
800C25E6 03E8