Undertale - Hard Mode Sans Fight by MTanimura - Game Jolt

Undertale Fangame - Hard Mode Sans (FDY Normal Attempt)

AU] Undertale: Sans Fight The Hard Mode [Phase 1 Completed]

Newest Undertale Games - Game Jolt

Hardmode Sans, Undertale Test Place Reborn Wiki

Game Jolt - Share your creations

Undertale - Hard Mode Sans Fight by MTanimura - Game Jolt

UnderTale Hard Mode Sans Figh by FDY Completed (HP INF)

Newest Undertale Games - Game Jolt

Newest Undertale Games - Game Jolt

Game Jolt - Share your creations

Just another Sans fight by Panthervention by Panthervention - Game Jolt

Help_Tale Fresh Sans Battle HARDMODE (Unofficial Take) by Harry LTS - Game Jolt

Find Great Undertale Games - Play Online - Game Jolt

Game Jolt - Share your creations