Nintendogs: Best Friends Version - Used by Nintendo of America

Purchase one of several breeds available at the beginning of the game, then start spending time with your pup. Throw flying discs and balls to improve the pup's agility, bathe it when it gets dirty, and repeat voice commands to train the dog to do tricks. If you train it well enough, you'll excel in dog shows and agility contests, which will earn you money to buy other supplies and puppy breeds. When you earn enough cash, you can buy even more puppies to live with yours.

Walking your pup around the neighborhood is vital, as you'll find supplies and meet other dogs. Over time, your pup's stamina will increase so you can explore farther and farther. You can also interact wirelessly with your friends' nintendogs - you can set your DS to bark at you whenever another puppy is within wireless range.
* Pet the pup, acquire and play with more than 100 items like tennis balls, flying discs and even clothing accessories. Teach your dog to do tricks by creating your own personalized voice commands.

* Train your pups well and compete in obedience and agility trials. Win these competitions to earn cash, which you can use to buy supplies and even more dogs to keep your first puppy company.

* Walk puppies around the town to meet neighborhood dogs or interact wirelessly with friends' Nintendogs using the innovative Bark Mode.