"Nintendogs" supports a link-up method through the Nintendo DS's built-in wireless networking capabilities. A player can link one's system with that of another person who owns a copy of "Nintendogs" to let the players' puppies play together. This is called "Bark Mode". If connected with a player who has a dog not in the current player's kennel, that dog will become available. Also, players can use an item called the "White Record" to record a message. This can be used to say something to the other player. Dogs may also carry a present to give to the other player.