They have to have to fight each other using duel monster cards from Yu gi oh with a duel disk systems, they both have been taught how play the game, and, have been given enough time to create their decks.
What kind of desks do they both create? What type of monsters do they each use? What do they both think of have to do this? What do they think of the card game?
They both have been told about the shadow games and the Millennium Items, how do they react to all of this?