In the Hosting options, there will be a checkbox labeled Tag Duel. When a user hosts a game with Tag Duel selected, their join button will have a Tag Partner symbol on it. When they accept a user who clicks on their button, their button will disappear and then a new button with both the original host and his partner's names will appear, with a Tag Team symbol on it. While their button exists, the original host of that button will be able to click on other Tag Duel buttons, or accept another team who clicks on their button.
The 4 players are defined as followed:
Player 1 - The host of the button that accepted the incoming team's duel request
Player 2 - The host of the button that requested to join the other team's duel
Player 3 - Player 1's partner
Player 4 - Player 2's partner
If Player 1 goes first:
On Player 1's turn, he faces Player 2.
The next turn goes to Player 4, who faces Player 1.
The next turn goes to Player 3, who faces Player 4.
The next turn goes to Player 2, who faces Player 3.
And back to Player 1.
If Player 2 goes first:
On Player 2's turn, he faces Player 1.
The next turn goes to Player 3, who faces Player 2.
The next turn goes to Player 4, who faces Player 3.
The next turn goes to Player 1, who faces Player 4.
And back to Player 2.
Each team will share 16000 life points.
Each team will share 5 Main Monster Zones, 5 Spell/Trap Zones, 1 Graveyard, and 1 Banished pile.
Each player will have their own Deck and Extra Deck.
Each player will be able to see their partner's cards.
Only one teammate will be able to play at a time.
Player 3 and Player 4 will not see, or know what cards are in their hand until their first turns.
While your teammate is the active player, you will NOT be able to use or view cards in your own hand, Deck, or Extra Deck.
The first attack can be made on the second turn, even before Player 3 and 4 have taken their first turns.