Copper

Copper is a dog who appears in all the games along with his working partner, Booker. Copper's name comes from the slang term for police officer, "copper." He strongly resembles Japan's national breed, the Akita. In all four 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 cannot tell the player about the lost and found, but he can tell him or her and type in friend codes with him. The player can visit other people's towns only by using WiiConnect24 or Nintendo WFC.

Copper displays extreme dedication to his job, sacrificing his own desires in order to fulfill his duties.

Doubutsu no Mori and Animal Crossing
In, Copper works at the police station where he alerts the player of upcoming events, the location of visitors in the town, hosts morning workout regimes in the summer and gives the player's friends a map of the town. Copper also participates in the Morning Aerobics, dressing in a gymnastics uniform and leading each stretch.

In Wild World, Copper now works as a guardian of the Town Gate, opening or closing the gate for the player's friends to come through and play, as well as providing friend codes for players. He is on the right side of the town gate. On the left is Booker. Copper will also notably mocks Booker behind his back in this game.

Copper's role in is unchanged from, continuing to act as a guardian of the Town Gate as well as providing friend codes. He also helps with the DS Suitcase.

Copper appears once the modern police station is completed as a result of a public works project. He maintains a lost and found and he tells players of any new presence in town, from new villagers to Crazy Redd's appearances, and to Gulliver being washed ashore.

Super Smash Bros. Brawl
In Brawl, Copper can sometimes be seen in the background of the Smashville stage. Copper also appears alongside Booker as a trophy and a sticker in this game as part of the Animal Crossing series.

Super Smash Bros. for Nintendo 3DS and Wii U
As mentioned before, Copper has a chance of appearing in the background of the stage Smashville, but only in the Wii U version. In the 3DS version, he once again appears alongside Booker as a trophy.

Trivia

 * Copper can be seen sleeping on the job at night in Animal Crossing.
 * Copper appears on the album cover of "Agent K.K."
 * Copper can be seen exercising on the job approximately from 5-6 a.m. in Animal Crossing.