Endingtale Sans Fight by onezhazha - Game Jolt

Ink Sans Fight 0.37 - Colaboratory

Dusttale Sans Fight by -TheKidd- - Game Jolt

Undertale Christmas Sans Battle by Remaster_Productions - Game Jolt

Undertale Hard Mode Sans Fight (CU Take) by CU1121 - Game Jolt

Undertale Ultra Sans Fight by _Vitjok_ - Game Jolt

Undertale Hardmode Tears In The Rain Sans Fight - woah, that's a lot of words. by WeAreJapaneseGoblin - Game Jolt

Sans Simulator 2

3D SANS FIGHT! Yet Another Bad Time Simulator Gameplay (Sans & Gaster Beaten)

Storyshift Sans Boss Fight (Complete Edition) by Patrick The Star

UNDERTALE: SANS AND PAPYRUS GENOCIDE BATTLE [RECREATION] by Team