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Playstation - Dragonball Z - The Great Dragonball Legend cheats

999% in Z Campaign Mode
Hold Select + Triangle + Square + X buttons, when the Z ranking screen 
is bring up at the end of any episode. Release the buttons, then push 
Down or Up to change the Z rank. To watch the special ending, 
increase the Z rank to 999%.

Dragonball Z - The Great Dragonball Legend Game Shark Codes: 

Unlimited Energy Vegeta
800183EE 0640
80013D80 0009

Unlimited Energy Goku
800192D8 2EE0
8001947C 00A9

Unlimited Energy Goku
800192D6 0640
801FFB64 0008