Animal Crossing: Wild World features a very minimal plot. The objective of the game is to pay off a debt to Tom Nook, who allows the player to move into a house he owns. If the mortgage is paid off, the player's house will expand until upstairs, left, right, center and back rooms are included. This is slightly different from the Nintendo Gamecube version, in which the finished house only consisted of a basement, a main room and an attic. While paying off the debt, players can do a variety of optional tasks, including interacting with other villagers and filling the catalog of the things they have, like furniture, fish, clothes and stationary.

Animal Crossing: Wild World makes use of several of the Nintendo DS' features, including the touch screen, dual screens and internal clock. The touch screen is used for menu navigation and interacting with the surrounding area, including movement, using tools, talking to other villagers, entering buildings, picking up items, etc. The dual screens are used to display the overworld on the touch screen and the sky on the top screen, which varies depending on the circumstances.

HINTS

ACTIONS

Free items

Look on the sky during a perfectly clear night. Tap a shooting star when it appears, to get a special gift the next day. When the animals say "I love you, I love you not," always choose "No," "I love you" and "I love you" for a free item. Every day, one tree will contain a random item. Spiders can be found this way as well.
Note: If a neighbor is looking at a tree, something is in it.

To get free things from other animals, if they are holding a net or a fishing rod, equip your own fishing rod or net and keep talking to them. They will say it is a beautiful day for fishing or bug catching. Keep talking to the animals and they will suddenly say "Why don't we have a competition?" Accept the competition and catch whatever they want. When you will have caught it, bring it back to the animals and talk to them. They will take your fish or bug and will give you a prize in return.
Note: This works more than one time on one animal.

Here's a video of this popular game: