Steam Workshop::Undertale - Sans battle (MEGALOVANIA) Web

Sans/In Battle, Undertale Wiki

UNDERTALE: ULTRA SANS FIGHT (UNOFFICIAL) by TheKiddo - Game Jolt

Deltarune Sans Fight by Fantasy ruin X

HorrorTale] Battle Against Sans by Ziman - Game Jolt

Undertale - Sans Fight Strategies and Tips

Sans Battle — Weasyl

Bad Time Simulator - Sans Fight

Gotten to the halfway point in the Sans fight and somehow megalovania seem to start playing after I took the screen shot even when it's not at this point in the fight.

How to beat sans on Nintendo : r/Undertale

ExtinctionTale Sans Battle