Same Charecter
All you have to do is have 2 or more players, then player 1 choose the character you both want. Then, un-confirm your pick and do not pick again yet. Then, player 2 pick the same one. Player 1 hits the B button, then goes back into character selection. Both players press A. You are both the same character. ( When you go to pick bike/kart one players character will look weird. )
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