Copper (おまわりさんA・もんばんさんB Omawari-san A; Monban-san B?, Policeman A; Gatekeeper B) is a dog who appears in every game in the Animal Crossing series (except for New Horizons) along with his working partner, Booker. His name comes from the slang term "Copper", meaning "policeman". In all of the games, Copper's dedication to professionalism and his work is in sharp contrast with Booker's doddering incompetence. Copper also prides early risers and warns the player to be careful when wandering around at night. Copper is in charge of opening and closing the Town Gate to allow other players to visit using WiiConnect24 or Nintendo WFC. He and Booker are shown to wield wooden pikes which shows that Tortimer has quite possibly permitted them to use, if necessary, non-lethal force. Copper works diligently, being straightforward with his job, in contrast to Booker.