In a game system for use in a card game by using a plurality of cards which individually have predetermined ability points, a plurality of competition environments are prepared to change the ability points from one to another at every one of the competition environments. Each of the competition environments...http://www.google.es/patents/US6375566?utm_source=gb-gplus-sharePatente US6375566 - Game system, computer-readable storage medium, and storage device for use in a card game
Game system, computer-readable storage medium, and storage device for use in ...
