Description
At the stardust festival on the planet Ultia, sweet pieces of stardust called Copets rain down. If you collect or eat Copets according to your fortune, you are promised happiness in the coming year. Greedy princes want all the happiness for themselves! Of the three brothers, who will be the happiest prince･･･!?

COPET (コペット) is a set collection game for three players. The box acts as the randomizer, having small holes in the sides of the top and bottom that can align to allow players to shake out small plastic red, blue, yellow, and white pieces. The pieces resemble konpeitō, brightly colored Japanese sugar candy.

On a player's turn, they may choose to collect a Copet, consume a Copet by placing it on their Tummy Tracker, or draw an Astrology Card. After they've consumed certain amounts of Copets, they may also switch a Copet with another player or place one of their Copets on anoter player's Tummy Tracker. Collecting a white Copet allows a player to draw and reveal a special White Astrology Card.

When the box is emptied of Copets, players reveal their cards and score points according to the Copets and Astrology Cards they've collected. For instance a player might score 2 points if they have 2 red Copets on their Tummy Tracker, or they might score 5 points because the player to their right consumed 2 blue Copets.