Last Breath Sans 1.0.0 & 1.1

Last Breath Sans was made by: "1850/sumin2393/Gram Parson/Gramsen, edited by InstinctualityMUGEN"

On the 30th Genocide Run, Sans was napping at his sentry station, as usual, when a figure appeared throughout his fantasies. Sans recognized who this was while he was informed of Frisk's intentions to forever use monsters as their puppets and slaughter them. Skeptical at first, Sans refused to believe so; Gaster then resurfaced past Genocide timelines throughout Sans' mind.

Now fully convinced, Sans readies himself to confront Frisk after achieving new abilities no monster has obtained before. After killing everyone, Frisk is confronted by Sans in the Last Corridor. Sans tells them everything he is aware of and tries to guilt-trip them, but sadly fails. With no other choice, Sans fights with all his might. After being worn out, Sans lies by telling Frisk there still is a way to take a better path and offers "MERCY".

If they choose to fight, Sans will be hit by their blade. He then monologues why he's the lazy slacker everyone takes him for today, because it will always be erased in the end. Sans then realizes he isn't dusting and that he still has 0.0001 health left. Refusing to throw in the towel, Sans summons a bone to shield himself and attacks in rage once more, while trying to get them to reset by force. Frisk soon wears him out once again and Sans falls down, expecting to be hit again. However, the attack takes no effect on Sans. He now sees who's there (Gaster). He allows that certain someone to take over, disfiguring his face and forming a crack by the right side of his head to his eye. Not only that, but he then blindly attacks as a maniac, hoping to put an end to things once and for all. Eventually, Sans finally runs out of magic. As he looks like he hopes for the better to come, Frisk manages to hit him a second time. Sans then looks like he's about to stop smiling, but turns to dust before he could do so.

However, this Sans is based on Phase 3, but also has his hood on.

This looks pretty fleshed out for a spriteswap, hopefully it gets upgraded in the future to be it's own character.