This is a card game for 2 to 4 players who compete for fish cards using the cat cards in their hand.
The flow of the game is as simple as choosing one of the cat cards in your hand for your turn. However, cat cards have various effects, such as drawing cards from the deck, forcing other players to exchange cards, and pressing unwanted cards. Occasionally, there will be a "power comparison" where you can get a card by comparing the strength of the cat and winning! When the deck runs out, the game ends, and the victory or defeat is determined by the total points written on the fish card at that time.
The feature of this game is that everyone starts the game with the same number of fish cards. Some fish cards range from high scores to negative points, and it is unknown who started the game with how many points.
As the game progresses, you will gradually see who is best to play against and who is best to exchange cards with. It is a card game that children and adults can easily play, guessing in the hands of other players and bargaining which card to leave last.