I dont have the game(but am getting one),but if you want to play online with friends in supercheats,please place your info in this format.
Example
Friend Code:####-####-####
Name(of character)-(YOUR NAME)
Town(of the game)-(YOUR TOWN NAME)
So play online with ur super cheats friend.
Go to ign.com,and visit the Animal Crossing:Wild World forums,so u can play with them.
Have Fun!