This page contains Mario's Tennis Unlockables for Virtual Boy called "Bonus characters" and has been posted or updated on Aug 30, 2006 by Loui21. Let us know what you think of this Unlockable by thumbs voting.
Beat the game under singles mode using Mario five times, Donkey Kong five times, and Koopa five times. Wario and Rush (Mega Man's companion) will become selectable characters.
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