Underfell

Underfell is an AU of the well-known role-playing video game Undertale where all of the good-natured monsters who don't actually want to hurt the protagonist, are replaced by vicious versions with opposite intentions and vice versa. One prime example of this is Flowey, who, normally shown as being an antagonist in Undertale, actually wants to help the protagonist escape the Underground. It presents a universe where the Underground monsters are darker versions of their originals.
There are many interpretations of this universe, but most share similarities such as Frisk falling from Mt. Ebott and meeting Flowey, who isn't evil but rather a guide through the Ruins, and instead, King Asgore is the one that has instated the motto "Kill or be killed".
Underfell was made by tumblr user “Underfella” and was foremost created as a design aesthetic, so there originally wasn't a canon backstory to the characters outside of the idea that they are an alternative, evil version of the regular Undertale canon characters. However, he has added much personality recently, such as Sans being always tired and having an obsession with mustard or Papyrus being a cold individual with great aspirations.
All of the monsters are essentially malicious/more violent than in Undertale. They attack one another on genocide and don't believe that peace is an option. Instead of the wide arrange or friendly colors, most characters tend to share a fashion of black, red, and gold, with dark red being the color for battle sprites, with the sprites being turned grey when the monster is friendly. Flowey, Chara and Sad Dummy are pretty much the nicest characters/only nice characters (and some of the only monsters without black, red and/or gold in their character design). Monsters weren't always this way however, their evil nature is caused by the downward spiral the Underground got into. https://underfell.tumblr.com/post/185264510156/what-is-gaster-like-in-this-au-if-you-dont-mind
== Changes ==
* Frisk and Flowey are Pacifist-Run characters in a world of Genocide-Run based monsters, trying to befriend the characters who are trying to kill them.
* Frisk wears a blue shirt with black and pink stripes.
* Frisk/the human refuses to stop trying to make everyone like them.
*Flowey forces them not to kill, and genocide is instead the monsters killing eachother after Frisk teaches them the flaws in their philosophy.
* Sans calls Papyrus any variation of the word boss but in a very stupid way.https://underfell.tumblr.com/post/185334214951/if-were-gonna-say-sans-refers-to-papyrus
* Instead of saying "You're gonna have a bad time", Sans instead says "I'm going to have ONE HELL OF A TIME!!!"https://underfell.tumblr.com/post/185949100506/i-needed-to-get-this-out-before-my-hand-fully
* Instead of spaghetti, Papyrus will cook lasagna.
* Grillby is green with purple hues within while working, and purple when off work.
* Muffet wears black and purple clothes.
* Mettaton only has two arms in his box form, but four in his EX form, with two of them being yellow and controlled by Alphys to force him to do her bidding.https://underfell.tumblr.com/post/185398325246/the-man-the-myth-the-legend-mettaton-instead
* Mettaton always has a smile on his face.
* Annoying Dog resembles a white dog in a black cat costume.
*The Canine Unit becomes the Feline Unit and will no longer react well to play.
* Instead of Scolding, Papyrus will threaten Sans if he is away from his post.
== Gallery ==
Frisk, Flowey and Toriel.png|Frisk, Flowey and Toriel's official artwork
Sans and papyrus underfell.png|Papyrus and Sans's official artwork
Grillby Underfell.png|Grillby's official artwork
Alphys and Undyne underfell.png|Alphys and Undyne's official artwork
Mettaton Underfell.png|Mettaton's official artwork
Canonfellmtt.png|Mettaton's official artwork 2
Underfell Napstablook.png|Napstablook's Official design
Muffet Underfell.png|Muffet's Official artwork
Sad mew mew.png|Sad mew mew's official artwork
Asgore underfell.png|Asgore's official artwork
Underfell chara and asriel.png|Chara and Asriel's Official designs
Underfell gaster.png|Gaster's official design
endogeny fell.png|Endogeny
Underfell new designs.png|New Sans and Papyrus designs
== Trivia ==
* Toriel was the first character created for this AU, and it started out as simply "What if Toriel was no longer nice?" instead of a full AU.https://underfell.tumblr.com/post/162622967536/fun-fact-1
* Underfell was originally supposed to be named "Underhell", but was scrapped due to something already being tagged as such that had nothing to do with Undertale.https://underfell.tumblr.com/post/184118810891/tbt-spam03-the-last-image-is-the-very-first-take
== References ==
Category:AUs
Category:Basic Change
Category:Fell
Category:Neutral Dark
Category:Animation
Category:Comic
Category:Games
Category:Written story
Category:Community Shared