Gigachad Sans Gone Wrong

Undertale Fangame. Boss fight against Underworld Sans. Merg Gameplay Playthrough with commentary and reaction.

Fangame by BossHim

More Undertale Fangames

#merg #undertale #undertalefangame

All footage and music used belong to their respective owners. Allowance is made for fair use for purposes such as criticism, commentary, news reporting, teaching, scholarship, and research.

Thanks for reading. :) Gigachad Sans meets Horrortale

[BossHim]

Thank you for playing this game, and congratulations on completing it!
(BTW, starting from this game, I will spend more time trying to create simpler and more enjoyable games!)

[IfOnlyIWasAnon]

FINALLY, UNDERWORLD!!!

Most underutilized Alternate Timeline, a corrupted version of Undertale that turns every monster into, y'know, an ACTUAL MONSTER, is just a banger.

[jma]

A bosshim fangame without 7 billion 56 million 67 thousand and 4 gaster blasters?

Wowzers

[CallanTheBeelamaBoy]

"This is one of the easier ones" - Merg 2024.

[karabillys]

0:32 Watch out Merg there's a wall dweller!

[justagal]

This is what happens when Sans cant find the whoopie cushion to greet Frisk, cool video by the way

[Fodnex]

Don't call sans undertaker at 3 AM challenge

[karabillys]

For some reason I thought that was a really cursed inscryption thumbnail.

[ducc]

UNDERWORLD!!! I'm so happy this AU hasn't been forgotten, it's so badass

[jonathonpiskpos]

First to say the only real gigachad here is merg. In fact he's such a gigachad if we fought him as the player the music that would play would be named "battle against a true gigachad"

[sneakysquid]

i love how this has way more telegraphed attacks instead of the stuff that the other bosses had

[BabanDlh]

Giga Wrong

I remember this AU being one of my favorite when I was younger

[Forten]

15:10 we aren't so different spider man

[averagerobloxplayer]

Famous actors before and after drugs
Sans:

[JodioGiovanna]

I really hate how these fangames don’t know how KARMA works. Frisk doesn’t get karma if they’re LVL 1, instead they get temporary i-frames

[Korojiji]

32:28 we will remember this godlike words that Merg once he said

[DeDcheko]

Life is not easy, and it's very complica- omg!! Merg uploaded

[epicturkish]

Cab we all agree that BossHim is the GOAT like dude doesnt stop uploading fangames

[sanstheskeleton]

Underworld is one of the most underrated AUs out there, there's a full game being worked on for it, I hope you eventually play it when a new demo comes out!

[aninstrument]

Merg you should totally play Sans Spielen's Epic Megalovania; you'll love it.