This page contains I-Ninja Unlockables for Playstation 2 called "Unlock Battle Arena" and has been posted or updated on Nov 9, 2006 by C00KiEM0NSTeR. Let us know what you think of this Unlockable by thumbs voting.
Unlock Battle Arena
To Unlock Battle Arena, earn all the Grades, Then you should get the Master Grade. The Battle Arena Will be open at Robot Beach.
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