#underfell betrayal route

[nuk0m]

Im gonna work on a animation for that post i reposted. Also heres a storyboard underneath for a animatic i wanna do about uf ^_^

Based off the song bleed out

[the-uncursed-one]

Noooo, that’s so sad 😭😭😭 just like his death in UT, he still believes in her! Excellent job.

Battle Against a True Rival

Betrayal route

[red-ahh-brick]

Cooked up a cool lil Disgust take, hope y'all like it

[spookuzm]

btw all of the crust content you've seen so far are him in post-pacifist

[security4314]

my lil collab piece for my friends comic i pitched in with. go check out @littlehappyrabbit 's page to see the full thing! (oh ye, he looked better without the chain necklace so i didn't add it)

[milkybnnuy]

Moments before disaster

(Betrayal route)

Underfell belongs to @/underfell

[floofanflurr]

How to Be Kind

“HALT, HUMAN!”

Sweat dripped down Papyrus's skull, but he was not scared. The rattling of his bones was due to the storm, and nothing more.

“HEY, QUIT MOVING WHEN I'M TALKING TO YOU!”

Papyrus swallowed thickly as the figure actually stopped, their dust stained glove visible even in the dark.

“I, THE GREAT AND TERRIBLE CAPTAIN PAPYRUS, HAVE SOME THINGS TO SAY.”

—

Kill or Be Killed. It was the law Papyrus had sworn to uphold, and one that had been carved into his soul from the moment he was born. And there had never been a person that embodied it quite like the dust and LV smothered figure across from him.

This could never be the right answer, though. More death... more pain...

It was a cycle that Papyrus had tried and failed to break when he was younger, and instead it had broken him.

But he would try, one last time. He would scrounge up the Kindness he'd tried to beat out of his soul, and he would revoke that very law he'd devoted his adult life to.

He would not fight.

#######

BECAUSE I HAVE SO MANY EMOTIONS ABOUT A POTENTIAL GENOCIDE ROUTE IN UNDERFELL, OKAY? I know Underfell doesn't follow the traditional geno/pacifist route (it's betrayal/trust, if I remember correctly??)

But stars, the IMPLICATIONS of what a geno route would mean for UF Papyrus if he made the same choices as UT Papyrus. Because this Papyrus is a killer. This Papyrus has shed his integrity and kindness.

But you can never really destroy who you are at your core, can you?

JUST. IMPLICATIONS, OKAY?!?!?!?!? How much does he have to unlearn to do that?!?!?!? He's just as scared as canon Papyrus, but he's also rejecting the very laws he latched onto. He's rejecting the system that he is part of.

He's making a choice to change.

FUCK I FEEL SO MANY THINGS FOR THIS MAN, OKAY!??!?! SO MANY THINGS.

...So I wrote this. FOR FUNSIES! :D

[yanderes-galore]

your UnderFell! Sans concept got me thinking about how Fell! Sans would most likely treat human! darling and monster! darling differently. I'll mostly talk about the latter.

First thing that comes to mind, is that with monster! darling he would get more opportunities to be possessive rather than overprotective. He still has to worry cuz, you know, kill or be killed but darling doesn't have a constant threat of Asgore looming over their shoulder and they most likely learned how to stand up for themself in case the need arises.. and they aren't afraid to kill too, ig

Plus monster! darling has known all other citizens of the Underground for much longer than human! darling which means that they're closer with them too. Yeah, Sans isn't having a great time.

Second, if we're talking about romantic yandere! Sans, i doubt that human! darling will date him willingly. I mean, they most likely grew up in a peaceful environment so they know how unhealthy relationships look like. They can certainly hope that things will become more normal once the barrier breaks tho..

While monster! darling doesn't even know what that normal is. Yep, I imagine they'll probably ignore red flags and think that its just your average relationship even if they might realize that something is wrong. It's not like someone will tell them "hey, your bf is obsessed with you too much" (maybe Papyrus but he might value his brother's happiness more?). So Sans can actually get away with some things in this scenario. But eh, it depends on how far his possessiveness might go and I doubt that darling is a pushover, despite how many obvious toxicity they might just not notice

Oh, and don't get me started on betrayal route (O_O)!

I personally like human darling as it shows the horror in yandere and toxic situations but your monster take is cool!

I'm happy you enjoyed my concept :)

[randomsloredrops]

Random's Lore Drops - dang that flower fell off-

Howdy hey, it's your ol' pal Random here, to teach ya about... yer only pal in the Underfell's Underground, Flowey! Because Papyrus definitely isn't your friend. Now them, here's a photo (from the same picture that I got the frisk photo from, because i can't find a good one where he's alone).

So yeah, we'll be talking about this fella. Unfortunately, there's not much, both in Fella's Tumblr, and the somewhat reliable canonfell wiki that I use, so this'll be short.

So, Flowey... He's REALLY not got a lot I can tell yall, tbh. Seriously, not only is Vicky's blog lacking flower lore when you first try to find stuff about him, but even the FUCKING CANONFELL wiki lacks info about him. really says a lot about our community tbh. Anyways, onto the LORE. As you can CLEARLY see, Flowey's in a pot. Actually, nvm, you can't see it. Lemme get a different image for y'all to see. Now, before you see it, letting you know rn that this image is one I found on the canonfell wiki (but most definitely is Fella's art)

Anyways, as you can CLEARLY see now, Flowey's in a pot. And, if you've read my previous post, you'll know this dude, no matter what happens, if he gets launched out of his pot, he'll fall right back in with ease thanks to Frisk. Now, you'll prolly never be able to tell but, there's PROBABLY a box cutter inside of his pot. Why? Well, self-defense of course. He also fears every monster ever (reasonable), which presumably means that, unlike in normal Undertale, he does NOT befriend Papyrus. He's also apparently not AS innocent as a wilting flower that's been beaten to death and fears every Monster would be expected to be, because SURELY a sentient flower that's gone through all that is just a silly lil guy, right? (that's sarcasm if you couldn't tell). Based on info I got from the Canonfell Wiki (sorry but I'm NOT planning on scrolling through fucking MILLIONS of posts to find lore for Flowey), in the Betrayal route (Underfell's Geno route), the person that's killing is actually Flowey, who forces Frisk to do such by wrapping vines around their arm to the point of bruising (and even bleeding by using thorny vines) to get them to kill, doing the job himself if they refuse to. Oh yeah, he doesn't even trust Toriel at all (i'll explain the equivalent of the kill or be killed philosophy that's different about Toriel in her post to explain why he's scared of her) that's about all i have for this post. uhhhh k bye lol

[haveyouseenthisskeleton]

#1 Day of asking random shit to blogs I follow because I can and I want to + boredom

Do you have any Undertale OCs and/or your own Undertale AU? If you do, can you explain the lore? :]

I'm more of an AU rewriter actually. I'm taking popular AUs and try to make them more realistic and mature (and more political, I love the Underground politics, that's like my favorite subject).

So far, I'm working on Horrortale with my fanfiction Horrortale : Rotten Apple, which is actually more of a pre-Horrortale fanfiction, since I'm working on the events between when Frisk left the Underground and the famine. So far, it's like 20 chapters and Undyne is still not queen. I want her coup d'état to be violent and the result of months and months of bad decisions, not only her bad decisions, but also Toriel's ones as a ruler. Toriel is not a bad ruler at all, but she is impopular because of her exil in the Ruins and the fact that despite Asgore's death, who was loved by the Underground, she did nothing to prevent something like that to happen again. Undyne being the one Asgore's trained, monsters will slowly turn their back to Toriel, which will have consequences on other characters like Sans, Papyrus, Flowey or Grillby. Frisk is not the one responsible for all this either, as they are trying to save monsterkind in a world where adults don't believe them at all. That's a really difficult story to write, but I'm having so much fun with it.

The second one is Underfell, with my fanfiction No Weakness. It's a Papyrus centric fanfiction that takes place after a pacifist route. Since there's no reason for Asgore to let Frisk live, Frisk is actually still Underground, living the best life with Toriel, and protected by a pact formed by Sans, Papyrus, Undyne, Mettaton and Alphys. The kid must stay a secret. But after some months, Papyrus is doubting the plan, as not only they could all be executed if something goes wrong, but there's also the problem of Frisk becoming more independant and asking more and more questions, and worse, taking Papyrus as an exemple, which he absolutely doesn't want because he is ashame of what he has to do every day to survive. No Weakness is also about Undyne, who suddenly starts to act strange, which worried Papyrus, until one day, she left the guard. Papyrus is quite distressed and doesn't understand until Asgore announces his soon to come wedding with her on live TV. The only problem being that Papyrus knows Undyne hates him with all of her soul, and that she is not there willingly. But Papyrus is also the general of the royal guard now, and as a general, you shut up and close your eyes on a lot of things. But Papyrus is really not sure he can do that.

The last one is the most close from an AU I guess, it's What is best for humankind. It's a war AU, focusing on Sans and Papyrus childhood. It's an AU because they are a lot younger in the games, so they couldn't live through the war, but I tried to make it coherent. Sans and Papyrus are forced to run away from their village one night, as humans are attacking. Gaster, their dad, being forced to fight, left them escape alone. Sans will have to protect his brother, and soon, a very small Undyne and a human through the devastated lands leading to Mount Ebott. It's both a survival story and a dramatic story as Sans will have to do and witness things he never should have, and face the betrayal of the only person who is supposed to keep him safe, his own father. Because this AU main story is about what being a judge means. In this world, the royal judge is not a job, it's a very rare class of monsters like boss monsters are. Judge monsters are very low HP monsters that can use karma magic, which is the same magic Sans use in his genocide battle in the game. During the war, the Judges, mainly pacifist, all died during the talks for a peace treaty, as the humans saw an opportunity to get rid of them all at once. The only problem being the magic the Judge develop can only activate if the Judge is traumatised and presents a abnormal level of determination. Sans is the only one left, he is not activated, and Gaster wants him to basically explodes in rage in the human castle to kill the Emperor. For this, he knows there's one solution that will sure piss him off enough: killing Papyrus. But Gaster is also the only one who is sure this plan will work, as both Toriel and Asgore are horrified by the idea. To stop the war, how far all of them are willing to go? That's the main story!

My last AU is a more classic one, it's a Sans x Reader fanfiction in a post-pacifist universe, Remember the good days. However, Sans is not exactly himself as he suffers terrible memory loss after a tragic attack during one of Frisk's speech. It's getting worse and worse as Sans is not enough stimulated with Papyrus in college. But Papyrus has a plan. He wants you to stimulate Sans, and he is even willing to pay for that. Surely he told Sans everything before hand and Sans won't hate you at all for this. ... Right?

[whiteeevee996]

I'm replaying Deltatraveler and god I can't believe it didn't hit me before how tonally dissonant things are in section 3. Even in the obliteration route where things are generally more serious, there's still gags and moments where Susie and Noelle are weirdly okay with their surroundings.

I also just...don't agree with a lot of the characterization of Noelle and Susie on the obliteration route. I think Deltatraveler normally characterizes at least Susie fairly well, but something in section 3 just is not correct to me.

Obviously, Noelle has every right to be angry at her friend who just commanded her to kill multiple children, but it's also so weird how Noelle is the one furious over this- Instead of, y'know, the character who has a major issue with betrayal and is shown (especially in Deltatraveler itself) to be protective of kids?

I very much think seeing Noelle angry and upset could really be cathartic and nice to see if done correctly...But I don't really feel like it's done so here. There's a rather dramatic shift from Noelle being the one to point out to Susie that Kris isn't themself in section 2 after you murder the snake, to going into this depressed, angry state in section 3, especially given Susie is the one that really tries to fight against Kris in most of section 2. I get the impression she's trying to hold the group together and doesn't want to ruin her friendship with Kris, but it feels off and hypocritical of her for being so...weirdly calm about everything that's happening, even laughing at the Underfell skelebros at times.

The decision to have Kris come out and tell the gang that they're being possessed is interesting and all, but it does ultimately get rid of a ton of the drama and tension that the first part of section 3 was trying to set up. The gang still participates in a lot of gags and has somewhat wholesome moments, despite knowing their friend is possessed by an otherworldly entity who seems keen on murdering everything around them for an unknown reason.

[danstupidaushit]

Felldust Danmaged

Kinda goofy how the way i have to post the lore is through an overworld sprite, but here we are Alright so, the lore for this version is kinda smaller, but not because it's simple or anything, but it's more or so because it isn't heavily based around a lot of events happening, but rather a simple concept that leads to a, i guess good climax? I'm not entirely sure to be completely honestSo, the main idea for Felldust, or at least this version of felldust is that, during the fight frisk has with papyrus, in the betrayal route, papyrus decided to call in another 2 royal guardians to help him fight off the human, with that decision leading to frisk convicing the 2 royal guardians to gang up on papyrus and beat him up, which leads to papyrus getting killed by them both. But, during the whole ruckus, sans was watching the whole thing go down, leading to him believing that the royal guardians unfairly killed his brother. That would lead to sans growing an immense rage towards the royal guard as a whole, as not only had they let papyrus end up dying, but also were the reason for why he died, as sans would immediately chase down the 2 royal guardians that had killed papyrus, and brutally murder them (and by brutally i mean kill them by uncommon means instead of the usual rpg stuff). With that being said, that would be what the story would be basically based around, it's sans going out and targeting the entirety of the royal guard in a avengence of his brother's brutal death. But, at some point, sans mind would grow so twisted by the rage that he would not only target the royal guard, but anyone even remotely related to the royal guard and asgore himself (cos of the whole thing where uh, asgore was the one that gave papyrus eye scars and shit, y'know that).That was the basic lore that was mostly applied to the OLD version of the au, aka the version with sans having his hood up, and having the grey and purple eye shit, y'know that.Now, there is a second version of the au that i ended up scrapping and uh, basically attempted at erasing it off from the internet that somewhat followed that same concept, but mostly changed the outcome of the au. While in the original version the ending consisted of sans going out for you after he noticed that it was in fact frisk that made the two royal guardians kill off papyrus, and in the fight having him going insane to the point of where he would accidentally kill himself by using his uncontrollable gaster blasters, ending the run and shit. The new version would consist of sans not going after frisk after he finishes murdering asgore, despite having already understood long ago that it wasn't necessarily the royal guardians themselves that had killed papyrus, but frisk had convinced them to. The ending would have sans basically accepting the chaos that he had brought to the underground, becoming dense to the point that he doesn't care anymore about the shit that he had done, and thus all of the rage that he had built inside of him vanishes away, leaving nothing more than an emotionless husk of what was sans. Sure he still smiles and jokes around, but he doesn't really feel anything anymore That also means there would not be a final fight like in the old concept, because sans has no reason to.Some fun facts about the aus: So like, the reason of the massive difference between the old design and the newer design was because i had MASSIVE issues with how underfell sans pallet is. He's too bright, and i really wanted to go with a very dull look for the au, but at the time i just really couldn't get it right, so at some point i just decided to say "fuck it, imma make him colorless", so that's why i went with the monochromatic look The design from the ref with the huge sans was my first attempt at it, and the reason for the second version of sans where he's a massive monster is because, at the time, i for some reason wanted to add a replacement concept for the ghost papyrus where sans saw himself, and even hallucinated with him looking like a giant horrific monster. I don't know why i thought that would fit, specially since the au doesn't necessarily focus on inside conflicts that the character has so, idk what i was on when i added that The reason both of the designs share sans having those weird chains around his hand is because sans used his own golden chains to kill undyne via beating her to death. I don't know why i made that a default design trait but, there we goI don't know why people like this take so much? Specially the old version, the lore is kinda confusing and the designs aren't the greatest, but im willing to archive this just so people can still get to see itNothing much else to say really, so.

[underfell]

So, I still don't get Underfell's routes. It's clear that Betrayal replaces Genoc*de, but what does Closure/Trust replace? I always assumed that Closure replaces Neutral and Trust replaces Pacifist, but I'm not sure and I want to know if I am right. Also, if I'm not bothering you and you've got some additional time, can you explain how hard Closure and Trust routes are different from each other?

I gotchu,

No Mercy- Betrayal

Neutral-Trust

Pacifist - Closure

Difference between Trust and Closure,

Kind of subjective, bear with me

(It’s also late)

Trust would mean that Frisk achieved in making the monsters trust each other, realizing they only really have/had each other. Almost like a quick forgive and forget kinda deal without any of them talking more about it. The monsters learn to trust each other, but there’s still hurt. Some kind of weight. Specifically amongst themselves.

“You can trust me “

Closure means that Frisk got the monsters cornered enough THEY HAD to talk about it. The only way out was to talk about it. It becomes harder to forgive and forget because now the problems are real. Closure is acceptance and moving on. Forgive themselves to forgive each other.

“I’m sorry for hurting you”

Closure and Betrayal I want to say are verrrry close in terms of paths.

[underfelllove]

언더펠 세계관

이건 아직 생각일 뿐이고, 저는 언더펠이 경로(*루트)를 선택할 상황에서 어떻게 될 지에 대한 아이디어를 떠올려보고 있��니다.

그리고

이 AU는 몬스터들이 어떻게 인간에 대한 신뢰를 잃었고, 또 어떻게 그들 서로에 대한 신뢰까지 잃게되었는지를 바탕으로 한 AU입니다.

이 생각의 모든 전제는 ‘프리스크는 친구를 죽이지 않는 아이’라는 것에서 시작됩니다. 프리스크를 보호하기 위해 서로를 공격하는 괴물들이 등장하기 때문에, 처음에는 모든 괴물들이 서로를 죽이지 않게 하려고 노력할 겁니다.

그래서 저는 언더펠에 ‘평화주의자(불살)’나 ‘학살자(몰살)’ 루트가 없다고 생각합니다.

그것보단 [신뢰¹, 배신², 종결³] 루트에 가깝죠. * 「¹Trust」「²Betrayal」「³Closure」

프리스크는 여전히 받은 공격에 대해 반격을 하겠지만, 너무 멀리 가기 전에(*누군가를 죽게 만들기 전에) 즉시 반격을 중단할 것입니다.

신뢰: 프리스크는 모든 괴물들과 친구가 되어 서로가 다시 믿을 수 있도록 도와줄 겁니다.

배신: 플라위는 괴물들을 서로 적대시하게 만들어, 후에 프리스크가 그것에 대한 비난을 받게됩니다. (플라위의 배신 루트에 대한 이야기입니다만, 프리스크가 다치지 않도록 싸움을 피하는 방법 중 극단적인 방향을 선택한 게 아닐까 싶습니다. 못을 박는다는 의미도 있기 때문에 프리스크가 무사히 지나갈 수 있도록 주의를 돌린다거나, 어떤 사건을 일으켰는데 프리스크가 그 사건을 일으켰다는 비난을 받는다는 의미인 것 같아요. 순전히 제 해석입니다 :)

종결: 프리스크는 모든 괴물들과 친구가 되고, 그들은 스스로가 저지른 잘못을 깨닫게 됩니다. 마침내 서로의 내면에서 화해를 찾아냅니다.

이 모든 건 초안이고 아직도 작업 중입니다만, 루트에 관련된 제 생각과 비슷해요. 아직 더 깊이 파고들어야 하기 때문에 아직은 생각만 하고 있습니다.

JP

これはまだ考えに過ぎず、私はUnderfellがルートを選択する状況でどうなるのかというアイディアを考えています。

そして。

このAUは、モンスターたちがどのように人間への信頼を失い、またどのように彼ら同士への信頼まで失うことになったのかをベースにしたAUです。

この考えのすべての前提は、「フリスクは友達を殺さない子」ということから始まります。フリスクを守るためにお互いを攻撃するモンスターが登場するので、最初はすべてのモンスターがお互いを殺さないように努力します。

ですから、私はUnderfellに「True Pacifist Route」や「Genocide Route」というルートはないと思います。

それよりも、「信頼¹、裏切り²、終結³」ルートに近いです。

「¹Trust」「²Betrayal」「³Closure」

フリスクは依然として受けた攻撃に対して反撃を行いますが、行き過ぎる前に(※誰かを死なせる前に)すぐに反撃を止めるでしょう。

信頼: フリスクはすべてのモンスターと友達になり、お互いを再び信頼できるように手助けします。

裏切り: フラウィーはモンスターを互いに敵対させ、後にフリスクがその責任を負うことになります。 (フラウィの裏切りルートの話ですが、フリスクが怪我をしないように喧嘩を避ける方法の中で、極端な方向を選んだのでしょうか。釘付けにする、という意味もありますからフリスクが無事に通過できるように気をそらすとか、ある種の事件を起こしたのに、フリスクがその事件を起こしたと非難されるという意味だと思います。 純粋に私の解釈です。)

終結：フリスクはすべてのモンスターと友達になり、彼らは自分たちが犯した過ちに気づきます。最終的にお互いの内面で和解を見つけます。

これらはすべて草案であり、まだ作業中ですが、ルートに関する私の考えと似ています。 まだもっと深く掘り下げなければならないので、まだ考え中です。

원문 페이지 바로가기 (原文ページへのリンク)

[tally-kiza]

Undyne Headcanons

UNDERTALE

- After Undyne’s parents died when she was young, she became determined to get justice for al monsters who had to die without seeing the surface. She went to Asgore to fight him so she could get into the Royal Guard, but instead Asgore trained her. It wasn’t long before she felt like a daughter to him. It warmed his broken heart. Many years passed before he finally let Undyne into the Guard. As the king expected, she quickly climbed up the ranks into captain.

- Undyne and Papyrus’s friendship is full of sarcasm and weird jokes (like that time in canon where they joked about spider-ducks); a typical offbeat humor. They also get into weird competitions with each other, like who can drink 8 glasses of milk fastest, and who can leave the biggest splatter by smashing tomatoes. Watching their chaos is... an experience.

- Undyne is her students' favorite teacher. Most consider her gym class awesome. Obstacle courses, extreme dodgeball, bench pressing the students. The kiddos, humans and monsters alike, have a blast. (Even thought she's not so good at the whole grading thing.)

- Even on the surface, where Undyne has proper recipes, she's still a terrible cook. At least her house isn't always on fire, though. Unfortunately, Alphys is also a terrible cook. She can only manage noodles and take-out. After a few months of this awful diet, they both agreed to take cooking lessons. It went swimmingly!! ...Yeah, they got kicked out after 3 classes. Undyne only barely managed to reign in her chaotic nature enough to learn how to make a salad and boil water with burning her house down.

- Owns a bunch of giant swords on the surface --- Swears like a sailor --- Hated nerdy stuff as a kid, but now is super supportive about it --- Blushes and gets a dreamy look on her face every time Alphys is mentioned; Even when they’ve been married for 20 years lol

UNDERSWAP

- She’s timid when Chara first meets them, but by the end of their journey, her passionate side really shines through. It just takes a bit for her to come out of her shell. But once she’s herself, it’s very clear how passionate and exuberant Undyne can be! Mostly about science, anime, and Alphys lol.

- Met Alphys at the dump. Undyne was looking for spare parts for her experiments when she spotted Alphys. The dino was staring at the waterfalls, contemplating her decision to be captain of the guard. Alphys never really wanted to hurt humans but she did want to free everyone, so it was a difficult decision for her. Noticing the other’s sadness, Undyne nervously introduced herself to snap Alph out of her reverie. They quickly became fast friends (and fell in love huehuehue)

- Experiments tend to go a little haywire when she’s really excited (and by haywire, i mean... explosion-inducing.) There are permanent burn marks on the walls of her lab. She doesn’t bother to clean them off anymore, not when they appear so often.

- Even more affected by the amalgamates than UT Alphys. Undyne truly thought she had saved everyone; she was so proud! But when she saw what the aftermath, she was devastated. The scientist never thought about her reputation, only how horribly she ruined them, how much pain she caused for them and their families. It was unbearable, knowing she was causing so much suffering. So Undyne hid them, not because she was worried of how people would think of her, but to prevent their families from seeing how devastated their loved ones had become. Chara reminded her, though, that she was just causing more suffering by making those families never know what had occurred.

- Undyne has been friends with Papyrus since they were kids. Shortly before he graduated, she got him an apprenticeship with the royal scientist. And even when he quit, they stayed friends, and often cook up explode-y experiments together. Both of them are still horrible cooks. ‘Dyne also has him join her to watch anime together. Pap isn’t as invested as she is, but he likes it well enough.

- Meme illiterate --- Loves side scroller games --- Can’t cook to save her life --- Plays piano for Chara when they first meet --- Met Napstablook at their cousin’s human fan club meeting. NTT felt guilty when they started distancing themself from her after they got famous, but the more time went on, the more awkward it would be if they returned, so they just.. never did... sorry...

UNDERFELL

- Papyrus is Undyne’s second-in-command and best friend. Neither of them will ever admit it, but they wouldn’t trade each other’s friendship for the world. And more so, they’re just chaotic goofballs a lot of the time. Normally Pap can calm Undyne’s hectic nature, but once she convinces him to join her mischievous plans, they are an unstoppable force of nature.

- Oddly enough, for being so chaotic and destructive, Undyne avoids fighting people as much as possible. She’ll always choose verbally de-escalating a confrontation over physically fighting any day of the week. Not because she’s a weak fighter, (no, if anything Undyne’s the strongest opponent you could ever face, second to Sans) but because she wants to minimize the bloodshed. The captain hates seeing her race at each other’s throats; it’s heartbreaking. So when it comes to monsters, she will always choose the most peaceful option until she has no other choice.

- When it comes to humans, though... ohohoho Undyne is merciless. She doesn’t even give the human the chance to run away. Frisk can’t beat her, all they can do is survive as long as possible. That is, until Pap shows up and distracts undyne while Frisk escapes. (Pap loves protecting helpless creatures, and Frisk was just too cute of a kid to let Undyne slaughter them). From there it proceeded like in canon UT: the human and Pap ran away to Hotland until Undyne passed out from the heat. Frisk stopped and gave her some water before the fish lady was revived, glared at them, and stomped back home.

- From there on, Frisk befriends her the same way as UT, except Papyrus doesn’t insist on hanging out with Undyne. In fact, he urges the human not to, but Frisk decides to go back and talk with her anyway. Pap tags along only to protect frisk! Definitely not to make up with Undyne. The hang out progressed as normal (just with ‘Dyne being a little more destructive and ranting about Paps’ betrayal for a bit), and she and Pap call up Frisk often with their usual snarky banter.

- Probably sets her house on fire on purpose. Why wait for the fire to come to her, when she can get one leg up on the fire!! Oh no... now she’s literally trying to fistfight her burning house. Can someone get a fire extinguisher!? Additionally, everything she cooks ends up on fire. Boils water? Fire. Makes a salad? Fire. Looks at a box of cereal? Fire. She’s like a Sim.

- Always gives the guard dogs pets --- Swears all the time and super crass. She doesn’t even censor herself around Frisk --- Wears her hair in a bun to prevent enemies from grabbing it during battle --- Has a very obvious crush on Alphys. Always gets shy and blushy when she talks about her. Pap teases her about it constantly

SWAPFELL

- Met Papyrus when he applied for an apprenticeship with the other Royal Scientist. The two of them quickly became fast friends: science-y, anime-loving nerds. But when Undyne started the DT experiments, Pap left. He could not in good faith sit back and watch her play god with people’s souls. They had a huge argument before he stormed out and they haven’t talked since.

- Over the course of Chara’s journey, as they have phone calls with Papyrus, and eventually Undyne, the two of them slowly begin talking things out. And by the end of the true pacifist route Pap and ‘Dyne have reconciliated and are friends again. It’s truly heartwarming!

- Rumors claim that Undyne is some kind of horrible mad scientist. Screams and shrieks are often heard emanating from the lab, surely awful and painful experiments are going on. But nobody dares go near the lab to investigate, fearing their lives... but NOPE! it’s just Undyne’s shocked wails at dramatic plot twists in her animes, and the sadness of particularly brutal scenes. Chara was terrified they met her, believing all those rumors. imagine their relief when they found out she’s just a nerd.

- Has the same motivations as US Undyne when it comes to the amalgamates, but SF ‘Dyne also hid them to try and fix them. Do more research, more experiments, anything to undo what happened! But none of it worked, so she just gave up...

- She is very curt when you first meet her, but it’s not long before that stony exterior melts away to reveal Undyne’s true form: a chaotic and excitable nerd with access to highly dangerous chemicals and explosives! ‘Dyne’s not crazy, she’s just really passionate and reckless about the things she loves.

- Loves how strong Alphys is. It’s the coolest! (But they both think they’re each the protector in their relationship lol) --- Created NTT to kill humans, but they just ignored her after she made their body, and left to pursue music instead. How rude! --- Adores vocaloid songs! Her favorite is “Paradichlorobenzene.” She even learned to play it on her piano! --- Addicted to coffee. She is VERY hyper at times. --- Tends to prefer darker animes but she secretly loves Mew Mew Kissy Cutie. No one can find out. Or else.

[blueb00tz]

Underfell disbelief take story

So basically it begins during the fight between papyrus and undyne in the betrayal route, in the crossfire of the fight sans caught and dies, papyrus flies into a blind rage and thrashes undyne within inches of her life, he finishes her off and basically decides to get to the bottom of this all and find out who is turning monsterkind against one another and bring them to justice