Connecting Nintendo DS systems through Bark Mode allows one to play with another player's puppies and listen to a friend's White Record recording and exchange friend information. Using Bark Mode gives a present to each player if the player decides to take one of their supplies.
After the DS manages to exchange information with the other one, wireless communications automatically turn off, so the player can play with someone else's puppies as long as they like.
The park for Bark Mode appears with stone for the ground, a couple of green trees, a lake, and if a RC Helicopter is used, A caboose can be seen in either red or orange. It is presumed that the setting for the Bark Mode is on an uncrowded bridge.
- Bark Mode might have been a very early precursor what would later become StreetPass on the Nintendo 3DS.
- The present with the blue ribbon (if one of the communicators sends one of their supplies) looks exactly like cat presents in Nintendogs + Cats.
- The Japanese version of Bark Mode will not work with European, American, Australian and Korean versions of the game, as they contain content that cannot be obtained in that version. (ex. Dalmatian, New Years Eve Tiara.)
- A similar thing happens, as the Chinese version can only communicate with Chinese iQue DS and? iQue DSi systems.
- If you leave your Nintendo DS closed, your dog and the dog it found will bark.