Board Thread:General Discussion/@comment-26006155-20190425222457/@comment-26006155-20190428160220

Of all the above, the only lore detail that I can't immediately explain away in the case of Sans being Ness is Sans being left-handed.

Do we have proof that Ness is actually right-handed in Earthbound itself?

Now add to the above the lore details I was able to find:

-- The Fourside urban landscape in Hyperdeath Asriels' wings.

-- Clam Girl's claim that you have a neighbor named Susie matches Earthbound Zero.

-- Undertale's selective sensoring of Sans' teleport animation suggests seeing it would be a spoiler.

-- Sans' eye flashes blue and yellow when he uses his PK. The colors on Ness' shirt. And Ness does have telekinesis canonically.

-- Doctor Andonut's corrupted Uboa sprite has Gaster's eye-slashes on it.

So when MatPat made his video, he could have gone in with more evidence than he did. And a handful of seeming inconsistencies Manga pointed out visiblly weakened his case.

Sans=Ness was a radical theory. And those always face tough scrutiny by the public. You have to anticipate what people are going to throw at you, and hopefully plan for the incoming fire to mitigate it.