Undertale AU Wiki

Welcome to the Undertale AU Wiki, the main place for documenting Undertale's AUs. If you wish to contribute, just know that it is REQUIRED for you to read the Rules and Guidelines and the Policy of the Wiki BEFORE doing so.

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Undertale AU Wiki
Undertale AU Wiki
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Undertale - Alphys
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Underjumble is a small switch-up AU that keeps the characters so they still feel like themselves, but with a bit of the person they're replacing's personality/backstory.

A long time ago, there were two races: Humans and monsters. One day, however, a war broke between the two. Monsters were losing, and everyone knew it. Although most monsters stayed together, a few boss monsters tried to gain humanity's favor to save themselves. They joined the war with humans, and although they weren't treated too well, they were alive. Once the war had ended, however, humanity showed a new side. Now that the boss monsters were no longer useful to them, they harassed them, fled them out of town, and some were even killed. Monsters became more and more rare on the surface. Due to limited options of dating, hybrids were born. Before, no one dared to have a hybrid due to stigma of dying in labor, the hybrid bring mutated or weak, etc. The few who kept a hybrid hid the true nature of the child. One day, a child in a green and cream hoodie falls down into the land of monsters. This is where our journey begins.

Character Changes[]

Sans[]

Sans takes the Fallen role. He's around 12 when he dies, and is a hybrid, although it's hard to tell his human side by looking at him. He fell at a not so happy time in his life, but the care and love his family gives him slowly but surely heals himself, to the point he's almost like a normal kid. The grief from poisoning his father starts to lead him back to depression, blaming himself. Soon after, he realizes he can save monsterkind, he makes a plan, killing himself with the same poison as some sort of justice. He is your narrator, and although he does joke around and make puns like the normal Sans, he is wary and untrusting of Frisk. Before his death, he never truly got over the surface, fawning over it and making his room personalized. He's creative, loving to close ones, protective, and can have anger issues from time to time, but in general is a good kid. He wears Chara's outfit except it has a hoodie, and he wears his pink slippers. His au name is Wisp.

Papyrus[]

Papyrus takes the Soulless Angel/Empty One role. Post death he is a dog plush, and its eyes were cracked by being dropped when he was still alive. He's also color blind like an actual dog, leaving him with subpar vision. With this and the fact Frisk hunches over with their hood on, Doggo mistakes them for Sans. He has a resentment of being coddled and treated like a baby from Sans (who does have a reason, but Doggo doesn't know that) that comes out time to time. Adding that and his warped vision of Sans as someone who thought his was weak due to him calling Papyrus an "idiot" in death, the need to be big and heartless bleeds in. He still holds Sans in a high light though, and just like Asriel, realizes he wasn't the perfect person (He still loves him, but he put Sans on a pedastol of doing no wrong.) He died around when he was 9 and his au nickname is Angeco. When Doggo he looks like the Annoying Dog. (Also canonically autistic you don't need to have him it but. Just so you know)

Asriel[]

Asriel takes the Caretaker role. Asriel is an adult. He is not a father to Sans and Papyrus,  but is the King's past advisor. He was really good with the kids, though, leaving him their babysitter a couple of times. He doesn't hold as much hatred to Gaster as Toriel does to Asgore. Asriel tried to reason with him, but after realizing nothing would work, they went their separate ways. Asriel does not like Gaster due to his decisions, but he's not as brutal to Gaster as Toriel is to Asgore. His nickname is Xakiel and he wears a silver clip of the delta rune like Asgore's, with a robe like Toriel's, with his cheekstripes.

Napstablook[]

Napstablook takes the Judge role. They aren't lazy or really as aware as Sans is. Instead, they're kinda jumpy and scared, which is why they're not the best person to post at a station. They are better at keeping their promise than Sans. They try to help you throughout it but are too afraid for combat. They met Asriel through venting to the door. They are the final boss of the genocide route, but don't like it and realizes they have to do it because of how they don't want you to hurt anyone else. You keep attacking and attacking but you don't hit them, until the final hit where Sans takes control. They blurrily know that you can go back in time, and thinks they can stop you because physical attacks can't hurt them, but know not too much other than that. Napstablook, just like the game, only uses they/them! Please respect their pronouns.

Mettaton[]

Mettaton takes the Ambitious role. He wants everyone to idolize him and doesn't really care about the royal guard in any other sense, and is less selfless than Papyrus. However, there are still moments where he shines and shows care and love for others, despite being mostly self absorbed. He's strong, but Chara doesn't let him in due to believing he won't take it serious. He can annoy them, but in the end there's no bad feelings between the two.

Maddie[]

Maddie takes the Forgotten Scientist role. She was a mad scientist type where she tried random chaotic things and found out. She follows around Frisk sometimes but mostly hangs out with her cousins while making crude jokes although they can't see her. She does miss being with her family sometimes though, and would do anything to be able to interact with them. Au nickname is Madcie, based off her name and mad scientist. She has a lab coat personalized with frills and patches.

Chara[]

Chara takes the Captain of Guard role. Like Sans, they are one of the very few human monster hybrids. Their soul would shatter quickly, so there's no reason for them to be slain. This brings them a bit more self hatred, that they aren't able to give their soul. They don't know what happened to Asriel, and misses him. It has katana magic, and has some muscle with some scars. In the genocide route, their eyes and mouth get gooey to show that the magic side of them is unable to handle the determination. As you defeat them, their magic becomes melted. Au name is Lehanial and they have red horns to mirror Kris, although they're usually covered by their hair. (I use it/its pronouns for them sometimes due to them referring to themself as that, sorry if that was confusing.)

Asgore[]

Asgore takes the Enraged role. He's just a sad little dude who takes care of the flowers in Waterfall. He's an optional fight, as he will only fight you if you nag him. He won't try to kill you. There are two ways to end the battle. Kill him, or wait until Napstablook finds you and gains the courage to tell him to leave you alone (He wasn't really looking to fight and thought you wanted it just as a game, but Blooky doesn't know that)

Toriel[]

Toriel takes the Royal Scientist role. She and Chara are in a rocky relationship because Toriel doesn't agree with the violent approach. Chara argued it was the only way that lead Toriel to try the true lab. They miss each other but believe the other is angry, which Frisk has to make them come together again in true pacifist. She's also why Asriel and Chara have such high rankings, because she knew Gaster and thus Gaster knew that the two were qualified from them meeting a lot.

Alphys[]

Alphys takes the Recluse role. She's shy and wants to be your friend, but is scared of annoying you. She looks up to Undyne, they were once friends (well. Crushing on each other) before Undyne got famous. Undyne planned on coming back but always got caught up and was under a lot of stress. Alphys keeps watching and coming to her stuff, hoping to get her attention.

Undyne[]

Undyne takes the Celebrity role. Toriel got her a boost in success due to her status and being well known. Undyne believes in Justice and isn't super self absorbed like Mettaton. She always planned on coming back to Alphys but she got juggled in all her work that she lost sight of what was important. She's a celebrity, but doesn't do shows like Mettaton, instead being more known for fighting.

Gaster[]

Gaster takes the Monarch role. He isn't as heartbroken over hurting humans, but he doesn't enjoy it. To him, it's a necessary sacrifice. He holds no hate to the human children, seeing it as professional.

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