WII U can't play 3ds games, so no that's not correct. It also can't play gamecube games unless you hack it, if I recall correctly, so that excludes the obsure 4 Swords gamecube came which was never ported.
Incidently Steam Deck can't do 3ds games well either, apparently AMD support for the 3ds emulators are very bad.
Yeah, that’s including the game boy games as they are (were?) available on Virtual Console. I put the “Nintendo made” qualifier to exclude the CD-i games
Fair enough. I usually try to play it normally for the first 3 or 4 guesses, then turn to grep to narrow it down. This site just automates the grep part.
https://en.wikipedia.org/wiki/Multi-user_dungeon