Board Thread:General Discussion/@comment-26006155-20190820122909/@comment-27089028-20190913110737

BlackfootFerret wrote: Sans bleeds while no other monsters do.

Sans sleeps but Papyrus doesn’t.

Sans is far more powerful than the King of all Monsters.

Sans has dark moods out of place for a monster.

Sans eats a variety of food while Papyrus only drinks milk.

Sans think it’s important for Papyrus’ new government to not consider all humans evil... right after Frisk’s massacre.

Sans keeps up an elaborate ruse about being lazy and weak, while going against Asgore’s direct orders to help Frisk rather than harvest him.

Sans flat out tells us that he came from another world with someone else, and that the surface world isn’t his home.

Sans is one of the few characters with the same small stature as Frisk, and both have the same pencil neck when viewed from behind.

Sans has telekinesis just like the Six Human SOULs, and Frisk. Both Sans and Frisk can teleport and take weird shortcuts together.

Sans asks Frisk if he remembers him from another place and time. Both Sans and Frisk are time travelers. Frisk does his traveling by using his human SOUL’s power to save and load. Sans likely does the same.

Sans either can’t or won’t teleport along with Papyrus, which annoys Papyrus.

Sans has seen the Sun before.

Sans has met Toriel before, the phone she hands Frisk has Sans’ room key on it. Humans are the only ones who would have taken Frisk’s journey out of the ruins. (Except for ghosts and burrowing creatures).

Although he easily has the power to claim it, Sans never takes the Crown of the Monsters, going so far as to leave the throne vacant if no other candidates are left. Because... he isn’t s monster, and it would be wrong for him to rule them.

That’s why I think Sans is a human. Admittedly that's a fair case but you could make a case for each of these details of Sans for him being a Monster as well. More importantly there's the dusting sound affect used when he shuffles off screen after slashing him which would seem odd to reuse for anything other than it's intended purpose.