The most glaring omissions are the ones where a very similar game
did get a Switch version, like how there's Super Mario Galaxy but not Super Mario Galaxy 2. So many major Nintendo-published Wii U games got ported (or subsumed by a sequel) to the Switch or 3DS that the ones with little to no Wii U-specific functionality stand out:
Paper Mario: Color Splash,
Star Fox Zero,
Xenoblade Chronicles X, and arguably
Yoshi's Woolly World.
Square Enix's back catalogue has some noticeable gaps in it, partly as a result of their strategy of favoring remasters over ports. They've got ports of the mobile versions of
Dragon Quest 1-3, for instance, but not of 4-6, and it wasn't until the Pixel Remasters that they had Final Fantasy games older than 7. I wonder if there is some technical difficulty that inhibits
Final Fantasy XIII from being ported (probably).
The 3DS is pretty much the last game platform where the software was so closely linked to the hardware as to cause a very severe impediment to attempts to port it to a newer one, while also being the earliest one where emulation on something as weak as a Switch would be infeasible. So while there have been plenty of remasters of games released between 2011 and 2017, none of them were 3DS originals. Somehow this feels more unusual to me than the story with the DS, where there've been just a handful of ground-up remakes.
Speaking of which, the NSO retro lineup has nowhere near the selection of even the Wii U Virtual Console, let alone the Wii Virtual Console. Not having to buy them a la carte helps to showcase deep cuts, but overall, fewer publishers are playing ball, and the ones that are on board (including Nintendo themselves) have been maintaining a pretty slow pace. And I'm not just saying that because I want
Ogre Battle and
Donkey Kong '94 back.
There are five mainline
The Legend of Zelda games that aren't playable in some form on the Switch; of them, two (Phantom Hourglass and Spirit Tracks) are very closely tied to a specific form factor, two (Wind Waker and Twilight Princess) had already been ported to Wii U, and one (A Link Between Worlds) is just stranded on 3DS. The absent
Super Mario games have no such excuse: I can believe that they consider NSMB1 and NSMBWii too similar to NSMBU, but NSMB2 is fairly unique, 3D Land doesn't need stereoscopic graphics
that badly, and Galaxy 2 I already mentioned.
Sometimes the game that is missing is a Switch game originally. I wonder if we'll ever know what the hell they were trying to do with
Super Mario Bros. 35.
But seriously, though, consider this: Nintendo and Microsoft have struck deals in the past, so why is
Rare Replay not on Switch?
Well that’s today’s mood ruined, I’d managed to forget
How could you possibly forget?