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Underswap Sans but in the universe of Underfell. There are two different variations of Swapfell Sans.

KKHopang's version of Swapfell Sans was the first variation of Swapfell Sans to be made.

Profile Edit

Personality Edit

An 'unstable' skeleton, his own brother refers to him as 'nuts' due to his energetic yet dangerous demeanor. He has a common habit of swearing... without using swears ("FOR HECK'S SAKE!").

Appearance Edit

He wears black and purple for the most part, just like other KH Swapfell characters, and appears to have big bones/a thick build.

His chest-piece is dark grey with a purple set of triangles designed into the left breast, with pointed shoulder-pads. His undershirt is short-sleeved and black/even darker grey, while his pants are more of a faded, dusty brown in color. He wears black boots and has a torn purple bandanna/scarf around his neck with purple gloves.

His left eye is pitch black, with three purple triangles acting as the pupil/iris. His right eye is similar, but has a white solid circle with the same triangle design inside of it in black this time.

He has sharp teeth and generally appears tired with dark shadows under his eyesockets.

His left eye has a scar over it.

Powers and Abilities Edit

It's assumed that he has the same powers as the original Underswap Sans.

Relationships Edit

Papyrus Edit

Papyrus is his brother, and while they may antagonize eachother, Papyrus is fiercely protective even if he doesn't show it often through ways other than bugging his brother.

Alphys Edit

Sans is being trained by Alphys, but their personalities lead them to butt heads quite often. They have a similar relationship that Sans does with Papyrus, but it's less intense due to not being as strong as a familial bond.

Gallery Edit

The Swapfell Red (previously Fellswap) version is much more common and recognized.

Profile Edit

Personality Edit

He is depicted as aggressive, stern, and mostly no-nonsense. Popular fandom interpretation shows him as also being snarky. His brother shows quieter tendencies and it's assumed that Sans uses this to his advantage.

Appearance Edit

Sans wears red and gold, like his brother's design (Swapfell Red has solely Sans and Papyrus, no other characters added canonically).

He wears much more revealing clothes than Swapfell KH Sans, his forearms exposed as his chest-piece has no undershirt, along with his legs as well due to wearing shorts. His armor is primarily black with golden outlines, though his boots, gloves, scarf/bandanna, and belt are red.

He wears a red belt with a golden skull on the buckle of it.

He is normally seen carrying around a riding crop or horse whip.

Powers and Abilities Edit

He is assumed to have a mixture of the abilities of Underswap Sans and Underfell Sans.

Relationships Edit

Papyrus Edit

Papyrus and Sans are usually depicted to be in either an abusive dynamic or in an otherwise just aggressive relationship. Sans refuses to let Papyrus be seen as above him, and thus his brother usually acts quiet or closed off due to experience.

Gallery Edit