The game consists of 126 cards that must be dealt among all players. There are a total of 5 shapes in 4 different colors. In each round, players must simultaneously reveal one card from their hand. If a card is repeated, matching both shape and color, players must call out "doubles," and the first to do so takes the cards. There are special cards that, when face up, allow players to make doubles regardless of color or shape. When all players' handouts are depleted, each player receives one point for each card they have collected. The game continues for as many times as agreed upon, and the player with the most points wins.

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