I think it COULD potentially be done, but it would be really demanding considering what we have at our disposal in terms of time saves. I would say it might be possible, but I don't know if it will be done. And if it does happen, that will probably take months at the bare minimum, assuming no large skips are discovered before that point. As for if it's possible with passwords/Yo-kai cam/qr codes, I don't think it would make much of a difference because any time it even could save is also weighed down by a greater amount of rng. Those are my thoughts.
Yo-kai Watch 1 out of the main games at least. Yo-kai Watch one seems to just have much less requirements to beat the game, like in 2 and 3 there are key quests which are not really in 1. Yo-kai Watch 1 seems to have less of an emphasis on story as well. The switch version is slightly faster than the 3ds version due to infinite stamina.
Thank you to Radu for confirming this, but SUCAH/IAE does not work in non-JP versions of YW2.
Can any English runner confirm they know how to do this on English versions of Specters, or is it patched? It's possible on English Fleshy and Bony, and all JP versions.