This page contains Sonic Adventure 2 Hints for Dreamcast called "A Chao" and has been posted or updated on Oct 5, 2006 by ryanlangston577. Let us know what you think of this Hint by thumbs voting.
To be able to play as a Chao in a Chao Mech in 2P mode, get all A rankings on all of Tails's MISSIONS (not stages, there is a difference), you will then be able to replace Tails with it in 2P mode.
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