Undertale Genocide route final boss - Sans (dialogue emphasized) on Make a GIF

Fan-art Emporium — Sans' battle in the genocide route is by far one

Sans (Undertale) VS Oersted (Live A Live)

Mettaton, Undertale Wiki

But the red eyes. : r/Deltarune

What is your opinion of the new Undertale spinoff, Deltarune? - Quora

nothing useful. — The Bosses in the Genocide Route

Sans, The Codex Wiki

Songs From Mt. Ebott: Vol. 2, Various artists

nothing useful.

Undertale - GENOCIDE RUN - All different bosses and dialogue

nothing useful.

Sans, A Fantasy Reality Wiki

Sans, Undertale Wiki

Undertale (Genocide Run, No Commentary) Full Run - Killing Everyone!