UNDERFELL New Update! Undertale Fangame

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Published 2017-10-04

Playthrough of the Underfell Echo Update by ManiaKnight. With commentary / reactions.

More Undertale fangames!
• Undertale Fangames

Play the game yourself!
gamejolt.com/games/underfell/196935

Underfell is an Undertale fangame made by ManiaKnight. It is an entirely new adventure through a more sinister and dangerous version of the Underground. After the true pacifist route, everything changes without warning and it's up to Frisk and Flowey to find out why this has conspired.

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

All Comments (21)

@Merg 6 years ago

Download the game here: gamejolt.com/games/UNDERFELL/196935 My first video about UNDERFELL: https://www.youtube.com/watch?v=HyoFUaRuatk
@asunder3097 4 years ago

Merg: “Look! We can do the Sans dance!” Frisk: screams in Sr Pelo
@jayce2773 4 years ago

"You helped her burn her own house down, kid" I don't know why but I love this line so much
@doodledeck9888 3 years ago

Omg I really love the voices. Error’s voice’s effects are so cool
@ojjaim 3 years ago

I love how he just says "w h a t I s t h at" when he sees Fresh XD
@tinymicrowave6821 4 years ago

My favourite part is how fell sans stops himself from swearing all the time
@CYB3R_8853 5 years ago

Flowey: Stop looking at me like That! Frisk: -_-
@blujay2270 3 years ago

i legit fell off my chair laughing when he said "is that ninja sans?" PPFFFTTT 🤣
@DaskPlaysPokemon 2 years ago

I'm so very sad this game got cancelled. It would have been the #1 fangame if it even had just one 'chapter' to play through. x.x RIP
@raptor1385 5 years ago

Me: Oh cool Cross Sa- Merg: Is this Ninja Sans?
@bradleygrosholz9893 4 years ago

Also Game: permanently increases Merg's health by 1 Merg: HOLY MOLY THATS A LOT MORE HEALTH WE GOT NOW!
@ambblackbee1541 3 years ago

Spits out water* VOICE ACTING THE DESIGNS ARE SO GOOD TOO, BUT THE VOICE ACTING LIKE BWWAAAT???
@Mugimations 3 years ago

All the characters voices are so perfect
@C00k13-S 4 years ago

"Oh cool, it's like YOLO Sans but like in a papyrus body"-Merg I tried so hard not to laugh while inhaling from confusion from your description of Fresh
@aSceene 4 years ago

B U D D Y , I D I D N ' T
@goneeee5598 3 years ago

"is that ninja sans?" me: falls down laughing
@leonoraarocho954 2 years ago

Fun Fact: Frisk actually had lots of dialouge. The reason why it was removed was because it invovled many, MANY swears.
@gregoryowens126 3 years ago

Merg: Woah, Sans has a baseball bat, he is armed and dangerous Also Merg: walking around with a knife
@acetic6497 5 years ago

"WHO'S THE TALKING WEED" Me:Floweys the talking weed Underfell sans:well im gonna smoke the hell out of ya
@christiangarcia3137 3 years ago

I love how he said “Wait who dat i-is he Ninja Sans?” 5 min later “Ohhhh he Cross that makes sense”