When both players are ready, the game starts. Game screen is devided in 3 sections: battle area in which the battle takes place, info area where you can check the opponent's status and yours, and the chat area.
Block Chat : Shut out/allow all kinds of chat.
Chat Area : Where it shows chat messages and the events that occur while playing.
Minimap : It gives you an overall view of the battle ground.
Soul Window : It shows you the state of each of 7 colored souls and the blank souls(The big purple ball in the center). It gives you essential information about the game.
Phase : It indicates whether it's attacker(sword) or defender(shield) phase.
Turn : It tells you the turn number.
Minigame : You can play this slot machine while waiting for the opponent to prepare. You earn SP according to the number of symbol that is identical to your rank icon.
Player Info : It shows you your state and the state of the opponent.(hand, deck, LP, Graveyard). You need to check these info constantly to lead a successful play.
Ready : If you are done preparing for the attack or defense, press "Ready" to begin the fight.
Reshuffle : You can reshuffle the 6 cards in the hand with the cards in your deck. You can use it only once in a turn.
Options : You can choose the game options.(Sound, Game Screen, Background Image, Exit)
Frontfield : The field where you can put Unit, Spell cards that react in the coming turn.
Graveyard : All kinds of destroyed cards go into the graveyard. You can also throw out your card deliberately in here.
Landfield : You lay your land cards here. You can put up to 10 cards in here.
Deck : This is where all of your cards in the deck are stored.