You can't the game was only made 4 one player

i think it has to do with the 8 heart.
the 7 heart makes them your pruner.

Unfortunately the two player mode on the box wasn't very specific of what it could do in
2-player mode. In actuality the two player mode means that you can tag-team with another
person instead of face them in a duel.

you mean how do you get a tag partner, right then just keep
1)dueling him
2)talking to him
3)giving him sandwiches
and that is how you get a trust level most of you don't know what trust level is
trust level is when you open the database and choose duelists album you will see some
spaces for hearts those hearts are the trust level you have to get it filled (i believe
still working on it)so you can get him to be your tag partner

I want play , I want win of my friends, my brothers and others peoples. Please Help me.
(I'm a brasillian boy)