This game is a poker man-machine battle game played by four people. There are four situations in each round of the game. For the sake of fairness, each player has the opportunity to become the leader. In this game, the user is set to be the first player, and then in a clockwise direction, take turns to be the first player. At the beginning of the game, each player can get 6 cards, and will show the top 4 cards of the remaining cards on the table. Next, start playing cards from the first player. A eats 9, 2 eats 8, 3 eats 7, 4 eats 6, 5 eats 5, 10 eats 10, J eats J, Q eats Q, and K eats K. If there is no card to eat, you should discard a card in your hand. Then, the card player has to turn over a card from the deck and put it on the table. If he can get points, it is also the card player's score. When all players have exhausted their cards and the deck is empty, it is the final scoring time. Except black plums for 40 points and spades for 30 points, only red cards can be scored. A is 20 points, 2 to 8 are 2 to 8 points, and 9 to K are 10 points. Note that since this game is purely for entertainment, it is 0 points if you don’t eat, and there is no bonus for double red 5. It adopts a very retro gameplay.