My first words were "Absolutely oustanding!" when I started to play this game.
Before I actually picked up the game and started playing, I figured it would be a mediocre port. Then I actually played, I started my town, got into it, and started seriously playing. It was awesome, I couldn't put it down, and still can't.(Well, I only put it down to write this review.) Here is a small breakdown of Animal Crossing: Wild World for the Nintendo DS.
Game play: Perfect, awesome, amazing, the only words to describe it, it's perfect for any age, young or old. It isn't too hard, it isn't too easy, and it's learning curve is just right.
Graphics: Okay, graphics. Though the graphics are cartoony, it makes up for it in sharpness. The graphics are sharp, nice, clean cut, anything you could ask for in visuals, they are EXACTLY like the graphics on Animal Crossing for Gamecube.
Sound: Sound is soothing to the ears. The music is nice, the sound effects sound great.
Online Aspect: The online part of Animal Crossing is just like single player except for the fact that you can visit another players town or have them visit you, and you can give each other items and such. All you need is each others friend code and you're set.
Replay Value: As for the replay value, well, let's put it this way: You can play this game FOREVER. It never ends, you can just keep going and going, on and on, forever. It's good for those video game addicts that never want to put a game down, it's also good for regular gamers.
All in all, this game is revolutionary, and will change the way Nintendo DS is played as we know it. I would suggest picking up Animal Crossing: Wild World for the Nintendo DS as soon as possible!