Ninteno WiFi Connection Service being shut down on May 20th, 2014

Yeah I posted it in the 3DS topic, but having its own topic doesn't hurt.

Recap on the affected games by this decision

 List of affected games

Wii

• Animal Crossing: Let's Go to the City
  
• Battalion Wars 2
  
• Boom Street
  
• Endless Ocean
  
• Endless Ocean 2: Adventures of the Deep
  
• Mario Kart Wii
  
• Mario Sports Mix
  
• Mario Strikers Charged Football
  
• Pokémon Battle Revolution
  
• Samurai Warriors 3
  
• Super Smash Bros. Brawl
  
• The Last Story
  
• Trauma Center New Blood
  

Wii Ware

• Dr. Mario & Germ Buster
  
• Excitebike World Challenge
  
• LONPOS
  
• MaBoShi: The Three Shape Arcade
  
• ThruSpace High Velocity 3D Puzzle
  
• WarioWare: Do It Yourself-Showcase
  

Other

• Wii Speak
  

Nintendo DS/DSi games

• 100 Classic Book Collection
  
• Advance Wars: Dark Conflict
  
• Animal Crossing: Wild World
  
• Clubhouse Games
  
• Custom Robo Arena
  
• Diddy Kong Racing DS
  
• Dragon Quest IX: Sentinels of the Starry Skies
  
• Dragon Quest Monsters: Joker 2
  
• Fire Emblem: Shadow Dragon
  
• Mario Kart DS
  
• Mario vs. Donkey Kong 2: March of the Minis
  
• Mario vs. Donkey Kong: Mini-Land Mayhem!
  
• Metroid Prime Hunters
  
• Nintendo presents: Style Boutique
  
• 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 Last Specter
  
• Professor Layton and the Lost Future
  
• Star Fox Command
  
• Tenchu: Dark Secret
  
• TETRIS DS
  
• The Legend of Zelda: Phantom Hourglass
  
• WarioWare: Do It Yourself
  

Nintendo DSiWare games

• Metal Torrent
  
• Mario vs. Donkey Kong: Minis March Again!
  
• Sujin Taisen: Number Battle