Nintendogs: Labrador and Friends Action Replay Codes for Nintendo DS
infinite walks for dog 1
This code gives all items
But after it's activated you can't buy/addopt dogs any more. So buy the few or many you want before activating this code
Ive tested and it works
Press SELECT to Have All Items
If you use a Action Replay DS and have a chihuahua at the bottom right corner and choose the breed from the action relpay you can have a small lab, german sheperd or what ever breed you want.