ok i know what u mean, its a glitch in the system when two players are in the game vs an opponent, what u have to do is press down forward and the tag punches when your partner does a super (ie b4 the face appears on the screen) then u will find your self in the game wid your partner taking on your opponent 2 on 1 literally, ne wayz hope i helped laterz ( this technique does not work all the time).