Is there an Action Replay code for Animal Crossing Wild world to get nookington's?

No, but all you gotta do is get someone on DS to DS or on WI-FI to come to your nookway and the next day he will be expanding.

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Hi. The answer on the top is right. Also, I want to let you know, that I go to a site called 'animalcrossingbay.com' and they have MANY codes there. Once your on the home page, go to action replay, u.s. 1.1 or u.s. 1.0. It depends. Then there are 4 categories you can choose from. Click on either one you want to go on, and they will have all the codes. Well, hope I helped. See ya.

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ACTUALLY! Both people on top are wrong.

Name: Tom Nookington's Seed

Code: 121d8906 00005010 It replaces slot 5 of your inventory

Info: It drops a leaf on the ground when you go inside (anywhere) and back out, there will be a Nookington where you dropped the leaf.

NOTICE: The Nookington's store has the same items as in your current store such as Nookway, there will be empty spots until you actually get Nookway to Nookington's.

WARNING: DON'T TO PUT IT INSIDE YOUR HOUSE, IT COULD BREAK YOUR GAME! ALSO DO NOT PUT IN FRONT OF AN IMPORTANT PLACE LIKE THE TOWN GATE. IT WILL BLOCK YOU FROM GETTING THERE. Putting this over water works fine. It just hangs over the water...