Animal Crossing/Town-Hopping

Multiple towns, multiple players: If a friend lends you a memory card that contains his or her town data, you can plug it into the second slot on your gamecube then hop on the train to visit their town, other towns usually have a different fruit and new people, plus it's very own Shop run by Nook with a different selection. And when you visit someone new may move from either town to the other. The many advantage to town hoping: You can meet the other towns villagers or even meet up with old friends who moved from your town to the one your visiting. You can even bring some of the fruit from your friends town to yours to plant and make fruit trees. Since Nook only pays 100 Bells for the natural fruit of your town, but he'll pay 500 Bells for foreign fruit, but don't be too hasty to sell them, plant them instead to make fruit trees to get a continuous cash crop. You may even find some things in a friends town that you wouldn't find in yours. You could even make an inter village challenge between your town and your friends, like the first one to 15 villagers or the first to fill the entire museum.