Unlike the previous Yu-Gi-Oh! video games, this game has a story. It is based on the Battle City story arc of the anime. The player assumes the role as a friend of Yugi Moto as they compete in the Battle City tournament. The game consists of a series of card games based on Yu-Gi-Oh! . To win each game, the player must lower his opponent's life points to zero. This is done by declaring attacks onto him using monster cards . The player loses if his own life points are reduced to zero. Everyone starts with 8000 life points. The player can walk around the city and talk to people. There are two ways to talk to people. One is to simply chat with them and the other is to challenge them to a duel. Each is done with a different button. While the game is paused, the player may re-organize their deck. The deck must contain exactly 40 cards. There are 900 cards in the game in total.