1Up has a wonderfully detailed Strategy Guide for Nintendogs up on their site. The guide includes training tips, daily care and how to do well in the different competitions. There's even a list of rare items you can find while walking various dogs around the neighborhood.
I've been told you can unlock a Dalmatian by finding a fire helmet on a walk near the upper, outer edge of the neighborhood. Here's 1Up's list of hidden goodies, check their site for the full details:
Nintendogs: Dachshund and Friends
Dog's Theme
Mario Kart
Namima
Red Plastic bone
Sandal
Shampoo Hat
Smart Cap
Smart Clock
Tiara
Nintendogs: Chihuahua and Friends
Blue Plastic Bone
Bowser Kart
Broken Clock
Crown
Cube Clock
Mario's Theme
Party Hat
Pizza Disk
Pumps
Nintendogs: Labrador and Friends
Deer Horn
High-Heel
Inner Tube
Peach Kart
Puppy's Waltz
Red and Yellow Plastic Bone
Silk Hat
UFO
Wall Clock
Nintendogs Strategy Guide [1Up, via Blues News]




















