All the characters are unlocked from the start with the exception of the final boss Unknown:
Unlockable How to Unlock Unknown Complete Arcade Mode 1 time
Contributed By: devilsteo88.
Selectable Tag Win Poses
Once you K.O. an opponent with a Tag assault, Tag throw or Tag combo quickly press and Hold either X, A, B, or Y buttons to select your Tag Pose.
Start match with second partner
Hold the TAG button at the "get ready for the next battle" message to start the match with your second partner
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