64DD - Wikipedia

Category:Cancelled 64DD games, Ultimate Pop Culture Wiki

Super Mario Disk Version aka Super Mario 64DD (found unreleased Nintendo 64DD port of 3D platformer; 1999) - The Lost Media Wiki

Kirby 64: The Crystal Shards - Wikipedia

Family Computer Network System - Wikipedia

Doubutsu no Mori - Animal Crossing Wiki - Nookipedia

It has bee confirmed that the Super Wiki thing was just an April Fools prank : r/Mario

N64 Mouse, 64DD Wikia

64DD, Nintendo

Desert Island 64 (lost build of cancelled Nintendo 64DD role-playing game; late 1990s) - The Lost Media Wiki

Mother 3/Earthbound 64 (lost build of unfinished Nintendo 64/64DD video game; 1999) - The Lost Media Wiki

Play game extensions

Mario Party - Super Mario Wiki, the Mario encyclopedia

SimCity 64 - Wikiwand