UnderFell Sans Fight I (Fan Game) - Free Addicting Game

Player has passed another path of genocide. Sans was tired of watching all this. And after the Ruins, Sans immediately attacks a person. You have a small LV. You have to win. (The game is in DEMO)

UnderFell Sans battle for Android

Underfell (ManiaKnight), Undertale AUs Wiki

Underfell Sans Fight No Download - Colaboratory

Skelebros Multiverse: UnderFell Sans battle【Undertale Fangame】

Underfell Sans Fight No Download - Colaboratory

Primus Underfell - An Undertale Fangame by Primus Official - Game Jolt

UnderFell Sans Fight I (Fan Game) - Free Addicting Game

Are there any other games featuring a combat system like the one in Undertale with all the dodging? - Quora

Underfell] Sans sprites (OUTDATED) by Pongy25 on DeviantArt

Why is Papyrus considered to be weak in the game Undertale? - Quora

What are people's thoughts on Undertale? Is it worth finishing the game? - Quora

UNDERFELL Sans Fight REMAKE by Charisard56 - Game Jolt

EXTREME UNDERFELL SANS Undertale Fangame