Amiibo

Color TV-Game | Nintendo Entertainment System | Super Nintendo Entertainment System | Virtual Boy | Nintendo 64 (64DD) | GameCube | Wii | Wii U | NES Classic Edition | Nintendo Switch¹

Handhelds:
Game & Watch | Game Boy line (Game Boy | Game Boy Pocket | Game Boy Light | Game Boy Color | Game Boy Advance | Game Boy Advance SP | Game Boy Micro) | Nintendo DS (Nintendo DSi | Nintendo DSi XL) | Nintendo 3DS (Nintendo 3DS XL | Nintendo 2DS | New Nintendo 3DS | New Nintendo 2DS XL) | Nintendo Switch¹

Franchises:
Super Mario | The Legend of Zelda | Pokémon | Donkey Kong | Kirby | Metroid | Fire Emblem | Star Fox | Yoshi | F-Zero | WarioWare | Animal Crossing | Pikmin | Wii Fit | Super Smash Bros. | Splatoon

Services:
Miiverse | Nintendo Direct | Nintendo eShop | Nintendo Network | Nintendo Switch Online | Nintendo TVii | My Nintendo | Wii Shop Channel

Other:
Amiibo | DeNA Co., Ltd. | Nintendo Spotlight | Nintendo Seal of Quality | Seattle Mariners² | Virtual Console (Other) | WiiWare

Smart-Device Applications:
Miitomo | Nintendo Switch Parental Controls

Defunct:
Club Nintendo | Nintendo DSi Shop | Nintendo Power | Nintendo Wi-Fi Connection | Touch Generations

Notes
¹ Nintendo Switch is a hybrid console which acts both as a home and handheld unit and satisfies the criteria for both categories.
² Nintendo owns a 10% stake in the Mariners