Zatch Bell – Gamecube

Zatch Bell - Platform: Gamecube

Unlock Maestro as a playable character:
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Win Time Attack mode 300 times. Maestro will challenge you, 
beat him and he will be unlocked as a playable character.

Unlock Zeon/Deufo as a playable character:
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Complete Zeon's Story Mode(level 35-43) to unlock Zeon/Deufo 
as playable characters.