2 player sans fight vs my bro

Let's Play Undertale Simulator - Sans Battle : 2 vs 1

Sans Fight, Phase 2 : r/Undertale

Sans Fight but with two players

UnderTale Last Breath 2 player mode by ProgramClass2 - Play Online - Game Jolt

Made a couple memes, the first one is a representation of mobile game ads, and the second one is the players point of view at the end of pacifist in a nutshell.

Hyper dust sans 2 player on Scratch

Undertale Genocide Route Pt 4 Sans Fight

Marvel: Crisis Protocol Crisis Card Pack 2023 - Refresh and Enhance Your Gameplay! Tabletop Superhero Game for Kids and Adults, Ages 14+, 2 Players, 90 Minute Playtime, Made by Atomic Mass

A cool little detail about Sans this guy brought up in the Stronger Than You animation by alfa995 : r/Undertale

Sans, Deltarune Wiki