This is a great game well worth playing. It will get boring in a month or so, however.
Gameplay-Excellent. What other game lets you care for puppies? You can pet the dogs with the stylus, give them treats, exhibit them in a dog show and take them on a walk. If you're lucky your dog will find a valuable present while you walk! With so many innovative features, I feel Nintendo has really hit all the green lights.
Graphics-Great. The dogs seem very realistic, and there are different backgrounds while you walk.
Sound-Good. The dogs yelp, whine, and bark(which is realistic IMO); and there are different tunes for walking and the dog shows. You can even hear the waves on a walk by the beach...
Story-N/A. They're dogs. You care for them.
Replayability-Decent. You can try to extend your play time by getting every possible item, and winning countless contests, and caring for more dogs. The game will get stale in about a month, though.
Button Layout/Control-Perfect. This is very simple. You use the stylus most of the time(which is very easy), and occasionally use the other buttons for camera purposes. This is a part of why the learning curve is very simple.
Overall-Superb. I love this game. If you have a DS, you should get this game.
Extras-Cool Items for your dogs,dog shows.