As of May 20th, 2014, the Nintendo Wi-Fi Connection service will be discontinued and it will no longer be possible to use online features of Nintendo DS/DSi and Wii software such as online play, matchmaking and leaderboards.
Unaffected services
The following services are not affected by the termination, and will continue to be available after May 20th:
Internet Channel
Amazon Instant Video
Netflix
Nintendo DS Browser
Nintendo DSi Browser
Nintendo DSi Shop
Nintendo Wi-Fi Connection Pay & Play
Wii Shop Channel
YouTube
Wii U and Nintendo 3DS games will not be affected but it will not be possible to use online features of Wii software played in Wii Mode on Wii U, and of Nintendo DS games played on Nintendo 3DS family systems.
List of affected Nintendo-published games
Online features and services of the following Nintendo-published games for Wii and Nintendo DS will no longer be available as of May 20th, 2014.
For more details about each game's Internet features, please refer to its website. For information about online services and features for games published by other companies, please contact the publisher.
Affected Wii and WiiWare games
Animal Crossing: Let's Go to the City
Battalion Wars 2
Boom Street
Dr. Mario & Germ Buster
Dr. Mario Demo
Endless Ocean
Endless Ocean 2: Adventures of the Deep
Excitebike World Challenge
LONPOS
Mario Kart Wii
Mario Sports Mix
Mario Strikers Charged Football
Pokémon Battle Revolution
Samurai Warriors 3
Sin & Punishment: Successor of the Skies
Super Smash Bros. Brawl
The Last Story
ThruSpaceTM High Velocity 3D Puzzle
Trauma Center New Blood
WarioWare: Do It Yourself Showcase
Wii Chess
Affected Wii Channels
Kirby TV Channel
Mario Kart Channel
Wii Speak Channel
Affected Nintendo DS/DSi and Nintendo DSiWare games
100 Classic Book Collection
42 All-Time Classics
Advance Wars: Dark Conflict
Animal Crossing: Wild World
Custom Robo Arena
Diddy Kong Racing DS
Dragon Quest IX: Sentinels of the Starry Skies
Dragon Quest Monsters: Joker 2
Fire Emblem: Shadow Dragon
Inazuma Eleven
Inazuma Eleven 2: Blizzard
Inazuma Eleven 2: Firestorm
Jam with the Band
Mario Kart DS
Mario vs. Donkey Kong 2: March of the Minis
Mario vs. Donkey Kong: Mini-Land Mayhem!
Mario vs. Donkey Kong: Minis March Again!
Metal Torrent
Metroid Prime Hunters
Nintendo presents: Style Boutique
Picross 3D
Picross DS
Pokémon Black Version
Pokémon Black Version 2
Pokémon Conquest
Pokémon Diamond
Pokémon HeartGold Version
Pokémon Mystery Dungeon: Explorers of Darkness
Pokémon Mystery Dungeon: Explorers of Sky
Pokémon Mystery Dungeon: Explorers of Time
Pokémon Pearl
Pokémon Platinum Version
Pokémon Ranger: Guardian Signs
Pokémon Ranger: Shadows of Almia
Pokémon SoulSilver Version
Pokémon White Version
Pokémon White Version 2
Professor Layton and Pandora's Box
Professor Layton and the Curious Village
Professor Layton and the Lost Future
Professor Layton and the Spectre's Call
Puzzle League DS
Star Fox Command
Sujin Taisen: Number Battles
Tenchu: Dark Secret
TETRIS DS
The Legend of Zelda: Phantom Hourglass
Walk with me! Do you know your walking routine?
WarioWare: Do It Yourself
This page contains the most up-to-date information about titles and services affected by the termination.
Source: NoE