It’s finally here!



I’ve finally finished the MBTI for the main characters! I worked really really hard on it, figuring out their functions and stacking one by one instead of taking tests as they’re 80% inaccurate.

All the MBTI typing are done manually and without tests.



Some will be surprising, and some will be not. I hope you enjoy them! I’ve tried my best to be as accurate as I can!



If you really like this , please do me a small favor and reblog if you wanna~!



It took a long while, but thanks and credits to my friend skilled in psychology for helping me check and analyse the MBTI types along side with me, and @screamingmbti for letting me use the text for the brain charts! Please visit her tumblr for MBTI goodness if you’re curious :D Write up is fully me, tho!





DISCLAIMER:



Some of the likes/dislikes in the brain chart apply to the typing in general IRL! Please imagine the equivalent in the Undertale universe for those! :) The personal commentary is done in relation to Undertale.

Unfortunately,as how Frisk parses things and receive info is up to the player, I am unable to determine their MBTI type. There will be no Frisk in this. Sorry!



Also, do note that even tho some people may share the same MBTI type, it may manifest differently! Some of the same types may have different weaknesses, but it’s the same type. For why that happens and how different it can get, please look into Ennegrams as well.(aka why a character that possesses the same type acts so different)

I will not be doing that though.

Contrary to common belief, Introversion and Extroversion does NOT have anything to do with how quiet, shy or sociable a person is. It’s all about parsing or gaining energy from external or internal sources.







Without further ado here we go!









Name: Toriel

MBTI: ESTJ

Functions: Te Si Ne Fi



Known Traits: Dedicated, Honest, Loyal, Patient, Dependable, Kind, Maternal, Organized,Assertive, Hidden creative talents, Nurturing, Loving, Works fast, Makes fast decisions,Family oriented



Known Weaknesses: Stubborn, Rigid, Judgemental, Hot temper, Difficulty in emoting(Negative emotions), Uncomfortable with uncommon situations, Black and white mentality, Insensitivity, cannot accept inefficiency/laziness

Personal commentary:

Ahh Toriel. Usually seen as the best goatmom ever.



Like her or hate her, Toriel is the type who enjoys order in her world, and enjoys things being concrete. She’s prone to liking stuff simple like the ideals of peace and love due to her type. Toriel is very dependable, reliable,maternal and kind.

This woman has improved her inferior function so she is able to come across as really warm and caring, but she still has trouble in general when it comes to emotions that’s not positive. This type is quite private and very dedicated to family.

It’s their instinct to mother, plus now that Toriel is under stress due to the death of 8 children, it quickly becomes desperation.



This is the type who needs black and white mentality to actually make sure things run well, and get extremely stressed out by grays. Her home, which she says is a mess, is nowhere near messy( look at sans’s).

Extremely good at quick decisions and short term solutions, but she is terrible at seeing very far ahead. Her views and decisions, in essense, lack depth and insight. Especially future insight. It’s good NOW but it might not be good later.



It really torments her if someone is not efficient in doing something that could have done with much less suffering. As an ESTJ, even if they don’t like the idea, if it’s efficient and effective and they see the value, they will grudgingly allow it. But since it’s not even efficient and doesn’t even ease suffering(which leaves such a maternal character aghast), plus she has literally NO ONE on her side, not her husband nor the entire monster population in regards to humans.

So she chooses to leave to maintain her sanity and left, owing it to inferior Fi.



Keeping stuff smooth and running is part of her core. If everything is running as it should, she is happy. I repeat again, a black and white mentality is REQUIRED for fast decisions. She can’t help being who she is because this is what she needs to operate.



With an inferior Fi, that means her negative emotions can become disappropriately terrifying.

In essence, Toriel has her back against the wall just like Asgore, but it’s far more T than F. And to a T type that is absolutely crushing.



Getting overrun by emotions can also feel inefficient/like borderline insanity to them, so when Frisk fights her, she becomes aloof until her emotions catch up to her.

She’s also the perfect example of why using only cold logic without feelings due to having an inferior Fi is a very bad thing.



Fighting to prove that you can survive makes sense….to a warrior. But this is a defenceless child(unless you’re in geno) standing right in front of her! What if she kills them by accident? (You can do that in game)

She lacks true sensitivity as well, saying she don’t know if cute or pathetic if you repeatedly flirt with her over the phone. You don’t call a 5-13 years old child pathetic directly to them.



IMO she’s kind of the strict nightmare mom that I never want to have if you get on her bad side, though…worse if you’re a messy kid… But she’s AWESOME to have as a friend!



Name: Asgore Dreemurr



MBTI: INFJ



Functions: Ni Fe Ti Se



Known Traits: Creative, Insightful, Mindful, Conscientious, Decisive, Inspiring, Altruistic, Kind, Understanding, Complex, Care for monsterkind at large, Charismatic,Sticks up for the weak, Sees problems from many angles, Great aesthetic sense, Excellent listener, Can see hidden motives, High empathy,Family oriented, Goofy, Jokes



Known Weaknesses: Inaction/Indecision if they do not truly believe in a cause, Makes decisions too slowly, Too sensitive, Burn out easily, Perfectionist,Withdraws too much into self under stress, Oblivious, Wishy washy in things that require quick decisions, Closed off, Stubborn



Personal commentary:



Asgore. ASGORE.

The views are extreme on this one, either he is hated or he is really loved by the fandom.

He is the kindest king. However, those traits of his does NOT make him a good king. Toriel fits those shoes better… He’d be an exceptional counselor/therapist though.



Asgore has a strength that doubles as a weakness in the story, he sees so many people’s perspectives, so many problems from so many angles that sometimes he can be stuck in which action to take. Without Toriel, he is much worse off.

Quick decisions are not his forte due to just HOW many perspectives, angles and views he absorbs.

This type also tend to be very slow in acting if they’re not entirely convinced it’s a good idea or cause. They do NOT act if they don’t think it’s a good idea. In reverse, if they are convinced, they will be even willing to reach for the skys and the moon for their cause.



Part of why he doesn’t seem to act as quickly as Toriel wanted is due to what Gerson said… If all monsters went up there before the time is right, there would no doubt be a massacre. A well trained Ni can see the future like this, which would frustrate a fast decision maker because it comes so slowly.

But they give a fast decision maker depth and insight, perspectives they’ve never seen before, and works best together.



After Toriel leaves, Asgore falls into a deep depression, which commonly will cause their dominant Ni to break.

When their Ni breaks due to severe stress, instead of being able to use their abilities to the point of being able to predict the future, it becomes a self destroying feedback loop, reminding them of ONLY the doom and gloom the future holds. They literally stop being able to see positive way out of an increasingly impossible situation, and drowns in despair.

That’s what Asgore is also potentially going through.



Raising hopes for the monsters is practically the -only- thing he can do in his view as he doesn’t want to kill anyone.



Highly perfectionist, he can also be stuck not to do anything unless he’s sure it’s the perfect solution or that he’s has no other way out.

The flaws of this guy is that he just…sits there due to his slow functioning Ni. While everything is burning, oblivious in his own world in genocide while also wanting to use the nicest way to placate. I don’t think he quite came to terms something is so dangerous in his world and everyone being dead in a blink of an eye, as everything is peaceful in his inner world.

Despite being called to absorb souls- he wouldn’t know why especially if it’s not explained.



Given, I empathise with what he feels as well, but…everyone is dying, he’s the goddamn king, DO SOMETHING.

(Ignore the sex part please baby goat is too young)

Name: Asriel Dreemurr AKA Flowey



MBTI: ESFJ



Functions: Fe Si Ne Ti



Known Traits: Warm, Friendly, Gives their all to family and friends, Upbeat, Loves (almost) everybody, Strong sense of right and wrong, Open, Honest, Helpful, Empathetic, Loyal,Selfless,Compassionate,Desires to look after others, Family oriented, good at reading people



Known Weaknesses: Spiteful, Guilt trips, Blame their problems on the way people ought to behave(kill or be killed), Highly insecure, Oblivious to others’ views, vunerable to cults/superstition, may react too quickly, unable to understand logic and cut people off, Too needy, Unable to acknowledge anything that goes against their way (kill or be killed), can be highly bitter if crossed, Passive aggressive, no strong internal moral code, tendencies to self victimise to justify abuse of others(as flowey), Prone to jealousy



Personal commentary:

Everyone’s favourite goatson!



Ahh this one was a toughie. Had to look at Flowey’s traits to get the full picture.



Flowey and Asriel are one and the same, and both sides of the coin, even if Asriel tries to deny that part of himself. If Asriel is the light side of his personality, Flowey is that dark side.

To find out about Asriel, I had to first determine Flowey’s other functions other than F, as he lacks it due to lack of soul. Turns out, he’s one of the kindest type, an ESFJ. By extension that’s Asriel.



Basically, Flowey is a broken version of the ESFJ due to having a lack of soul and his experiences that made him even more twisted, not removing his emotions but removing his compassion for others.

Being Fe dominant, not being able to care for others and love others is like a death blow to this type. “please let me care for you!” is ESFJ’s secret motto.



Asriel stops being himself, and becomes Flowey. A twisted depraved flower who doesn’t know anything about love but unconsciously craves to love someone, but is unable to feel anything, and thus feels even more frustrated and full of self loathing.

Even in the neutral route, him saying the ‘mommy, daddy! help me!’ lines in a form of mocking you is a self depreciating humor, he had did that when he first became a flower himself.





When you spare him, for a brief moment, his real self shines through. Your niceness to him has a distant echo of how he(ESFJs) in general care for others, and the idea that…he might have hurt someone innocent.



But due to not having his Fe back, he can’t understand at all.

So he is not remorseful, and the only logical(to him) conclusion is that to use this to his advantage to capture all souls and become powerful.

If you stop the genocide midway, he would be angry, an unconscious desire to relate to you(by destroying everything) and to care. Flowey/Asriel are always Fe dominant, and it’s unfortunate Flowey got it removed and is desperate for a replacement.



When he gets his Fe back, he completely transforms- that is to the little goat we know and love. But while broken and without an Fe to feel compassion and love, and this type THRIVES by loving other people, by showing love, by caring for someone else.

You can easily see why not caring/feeling compassion is destructive to his type, becoming a shadow of their former selves.

Asriel needs to love and be loved, it’s not just a feeling or a want, but a need to give and share love to other people, as well as being loved.

Flowey/Asriel are really tragic in this sense. I want to pick them both up(flowey too) and give them a hug.



Name: Fallen Child, Fallen Human, Whatever name you want to give them, Chara



MBTI: ENTJ



Functions: Te Ni Se Fi



Known Traits: Commited,Loyal, Driven, Fair minded, Will do anything to reach goals, extremely power hungry(And uses it to help people), inhuman levels of determination,holds others and self to extremely high standards, uses power to drive others to success, Purpose driven, Goal driven, Curious, Intelligence excceeding their age, Ability to come up with new ideas unseen by the world



Known Weaknesses: Extremely Critical, Lack of empathy, Zero sense of self, extremely power hungry, Overbearing, overpowering, Intimidating, holds others and self to extremely high standards, impersonal, dictatorial, abrasive, temper explodes under extreme stress, Harsh about inefficiency, extreme, highly fragile, not in tune with people’s feelings, Controlling, NO empathy



Personal commentary:

Ahh, the child that everyone loves to demonise.

This is the type that at best can be a positive force for world change, at worst could be what we see in game, a existance bent on destroying the world.

Unlike the rest of the MBTI types, this type starts out having zero sense of self. It’s not hidden unlike some types, there literally is nothing there. They also start out having no empathy. In essence, they are like a piece of white paper.

Do good things, and you might get a positive force of good. Do bad things, and you have a destructive force of nature. (”At first, I was confused. Why was I ressurrected? But thanks to your guidance…”)



Fallen child is a BROKEN ENTJ however.



This is why the Fallen Child could commit suicide to carry out a plan- They will get rid of any obstacles including themselves.(freeing monster kind/kill humans)

However, they are also the type to absolutely loathe betrayal, and will turn on anyone who did this( Asriel due to resisting/tattling to Asgore as Flowey, Frisk if you say no to erasing). Due to that, once bitten, they can easily drop the people who did that to them.(possibly entire monsterkind due to asriel alone.)

They themselves are no exception and will turn on themselves if they betray somebody. ENTJs are just as harsh upon themselves as to their surrounding people.



ENTJs are very honest and loyal. Gain one as an ally and you have a powerful person on your side. As an enemy…well…



They need to have amazing parents to even begin to have empathy and a sense of self. It’s really a pity even the royal goat family came up short.

ENTJs are highly driven for success, and would guide loved ones to success.



They’re very power hungry and like amassing power, not to prove a point, but for power sake. They just like power in itself. (”Gold. EXP. Lv. Everytime that increases, that feeling is me. *player name*”)

ENTJs are pure in the darkest sense possible due to this. There’s no hidden motives, they just do what they do because they want to.

They’re also unfortunately very very fragile. Getting a good ENTJ is like doing a 1hp no hit run.



The thing that would cause them to attempt suicide in the first place is not abuse, as that would give them drive and hatred to continue. It is emptiness and the lack of purpose that causes this type to wilt away.

Fallen child scares me, if because there is just so much potential shining under. Could likely even be a greater hero than Undyne herself just due to how much dirty work ENTJs are willing to do to achieve their goals(and how they can remove themselves if they see themselves as a threat to those goals) .Things that others don’t want to do.



Fallen Child did try to carry out what Toriel was angry with Asgore about, didn’t they?



But all that potential wasted the moment they cut Flowey at the end of genocide in anger and officially descended into a psychopath/demon. They weren’t before, but they definitely are now.



Sans’s comment could have very well been referring to them on a fresh genocide route without completing true pacifist first…but this line is more speculation.



Name: Sans



MBTI: ENTP



Functions: Ne Ti Fe Si



Known Traits: Jovial, Jokes, Innovating ,Knowledgeable, Lazy, Hardworking, Tendency to one up the ones they love constantly,Charismatic, Solve things that seems impossible, Open, Resourceful, Secure, Copes with stress well, Challenges status quo, Observes people, Open, Multi talented,Reads expressions and body language well



Known Weaknesses: S class procastinator, Insensitive, tendency to be boastful, reckless, too smart for their own good(and land in impossible situations), Trolling, Constant rule breaking, Insecure, Never finishes what they start(most of the time), overly competitive, Never truly get close to people, can become highly bitter



Personal commentary:

The skeleton that everyone wants to bone(hahaha geddit? *crickets*)

Sans is a complete walking oxymoron. He can be lazy and hardworking, secure yet insecure, close yet distant.



Anyway, he’s a jovial loveable pun master who’s is secretly competitive, and oxymoronic of being hardworking and lazy at the same time.

At first I got thrown for a loop. What? Debater? Sans isn’t a debater! Then I realise it’s the common perception of a debater.

With the help of my friend, I opened my mind a little and realise well…sans keeps being a smart ass like this to Papyrus. Whatever Papyrus says, he never lets it past without slightly undermining comment( “I think that’s called….sleeping.” “He washes it at least, by that I mean showering in it” , and the whole sock notes)

That one upmanship is exactly like a ‘debater’.

If anything ENTPs also likes stuff to challenge their wits. Shyness is not in ENTPs playbook. Distant, wary and reserved, yes. But they’re not exactly shy people, being extremely social. While they mingle with almost everyone, their heart lies only with the precious people they love, and will make moves/look after them if they really care. They don’t like being looked after as much but appreciates it.



ENTPs are the type who loves being surrounded by people, but also keeps them at a distance. Casual relationships are like small talk to them, and they don’t really enjoy small talk. Everybody thinks they’re close to an ENTP due to their jovial ways, but only an ENTP knows how exactly close they are to others.

This is a very private extrovert. Social, but private.



In a sense, even to those who know them, they remain enigmatic.

For those that they do care about, they tend to make exceptions and become their caretaker/mentor.

They enjoy rule breaking and hates things that ties them down(promises, if it’s from someone who is close, they will try to fulfill it). ENTPs also have a tendency to turn to substances like alcohol(brewski!) and coffee.

This skeleton is extremely free spirited and needs quite a bit of grounding, but not too rigid. ENTPs are also by nature, complete slobs due to not seeing the need to do mundane everyday things, instead wanting to explore possibilities and knowledge.

ENTPs talk solutions, and get incredibly stressed when they can’t pull one out of their ass. Having Ne as his main, they have a tendency to not look at the present reality, but at abstract patterns that’s happening right now.

Patterns and implications, noticing what is not said, reading expression, new ideas, meanings. They’re big on possibilities that may happen right now.



But they’re not future oriented however, it’s focused on what is happening right now, what they can currently see or hear. External from themselves.

Then they come up with solutions.



They’re fast decision makers because they quickly get the gist of something, then make a decision. However, they can miss the details and implications for future(instead of now which they’re proficient at), which will cause them to fuck up badly.

In the genocide route, the Fallen Child is a pressing problem that needs to be dealt with right now, and he knows it. However, seeing the gist of almost everything and knowing everything can be reset, plus it may not turn out that bad, in addition to laziness, causes him not to act. Stuff that he can see now(vs the future)



That’s Ne at work.

However, he misses the details, it took that the time lines stopping completely due to the actions of the Fallen to realise that he can’t afford not to care. All the people he cares about dying did not push him to action, this did.

With this, the exact effect of his depression isn’t personality altering, but rather it brought out his bad traits as well as fucked up basic instinct by making him quite narcopletic even at a life and death situation.



Send this skeleton to a hospital.







Name: Papyrus



MBTI: ENFP



Functions: Ne Fi Te Si



Known Traits: Mindful,Deep, Conscientious, Spontaneous, Altruistic, Kind, Off in their own world, Observant, Complex,Highly curious, People pleasing, Energetic, Mediator, High empathy, Goofy, Joke,Social yet private, Inventive,Friendly,Wants to be master of their own fate



Known Weaknesses: Flunctuating self esteem, Overly idealistic, Too sensitive,Get Stressed Easily, Perfectionist, Oblivious, Closed off, Stubborn,Self absorbed, Nitpicky, Restless,Easily bored, bad memory,Does not take criticism well, Can’t focus well, Impractical,Overthink things



Personal commentary:





Everyone’s skeleton waifu/everyone’s favourite cinnamon roll.



Papyrus has the potential to become like as powerful as Asgore when he gets older.



Due to not being completely grounded in reality by having a weak Si and a dominant Ne, he can come across as a ditz or stupid, but the skeleton is actually pretty smart in other ways!



Papyrus possesses a lot of people skills and have the will and resolve to lift/shoulder people’s burdens. He is able to catch Undyne’s tendencies to not being able to resist a challenge.

Ne and Fi working tandem makes him extremely sensitive to what other people, and somehow is able to come up with the right approach at the right moment when it comes to people relations.



Additionally, this also unfortunately means he can get self absorbed.



Whenever one is down, Papyrus would be there to clear that right up. That’s the sort of person he is.

Due to having a tertiary Te, like sans, he’s able to come up with puns as well, and can be witty when he wants to!

However, he can be very self absorbed with intense highs and lows in his self esteem because he isn’t really developed, not sure of his place in his world. He tries to force it by joining the Royal guard, when the answer is care for people and make more friends instead.

Papyrus is mentally powerful and he’s no slouch in his attacks. It’s ridiculously hard to break him. (if it’s even possible) Even Asgore isn’t really broken when you think of it.



His mental strength allows Sans to cling to him, and once ENFP like him commit to a cause, you can expect them to move the earth to make sure it happens.

I cannot emphasize that enough, they’re powerful people when backed by friends and a cause.







Name: Undyne, Undyne the Undying



MBTI: ESFJ (Borderline transcendent,near self mastery, full access to all functions)



Functions: Fe Si Ne Ti



Known Traits: Warm, Friendly, no less than 100% in duties or obligations, Upbeat, Loves (almost ) everybody, Strong sense of right and wrong, Open, Honest, Forthright, High empathy, Cares for welfare of others, Sensitive to others’ needs (especially to less fortunate), Kind, Steady, Responsible,Dramatic, Charitable



Known Weaknesses: Completely illogical, Don’t pay enough attention to self, Can be influenced to hate, views are usually not their own, dislike conflict and criticism(especially from loved ones), unable to judge what’s for the best, Unable to understand verbal logic, vunerable to superstitions/cults/manipulation, React too quickly



Personal commentary:



Everyone’s favourite tough lesbian fish woman!



Wow. WOW Undyne. She was one of the hardest to do. This woman is on the cusp of mastery of her type, something most people won’t hope to be able to do in their life time.



If Flowey/Asriel are the underdeveloped/broken ESFJ, she is the one who almost have mastery.

This is another example how people with the same type can manifest so very differently!



Undyne is borderline transcendent, and becomes fully transcendent as Undyne the Undying.



Due to this, the MBTI label will not be able to fully cover her or describe her 100%, but I will try my best.

That’s not to say she doesn’t have weaknesses, but she has access to all 4 functions. It’s impressive for someone like her to do so at such a young(?) age.

In fact she was so hard because she was able to draw upon any functions should she need to.



She may seem to be just hot and passionate, but she also shows a very sentimental side during phone calls as well as if you killed someone, or in her undead (neutral route) or Undying (genocide) form. She gives her full 100% to other people, never faltering.

In her date scene, she confides in just how much she cares about papyrus and asgore, going out of her way to help Papyrus in his life as well as being friends with Asgore, who is highly likely to be lonely. This shows a sensitive and empathetic side to her most don’t regard , and she’s much softer than she initially looks. Undyne cares for all monsters and only ESFJs are capable of such deep intense love. (if in a scary way)

They’re also one of the types who have high chances of self mastery.



While Undyne’s almost transcendent, she’s not fully transcendent. That’s because she still relys on people when it comes to views and opinions, they’re not her own. That trait of Fe to absorb viewpoints and not be genuine to themselves.



The moment she becomes Undying she realises her own burning love for the world, for the people, humans and monsters.

And thus, Undyne becomes a champion of the world.

That’s what the best trait of Fe dominants. They care deeply for everyone. But she also realises what she really really thinks, as well, and she fully transcends and achieves complete self mastery, highly honed.



And so she becomes almost demi-godlike. Impressive no? Words can’t describe just how awesome she is! It doesn’t mean she doesn’t have flaws, but she is self mastered enough to make up for most of them in other ways!



Name: Mettaton, Mettaton EX, Mettaton NEO



MBTI: ESFP



Functions: Se Fi Te Ni



Known Traits: Bold, Excellent people skills, Good sport, Adaptable, Natural music/drama flair, Observant, Practical, Entertaining talent, Energetic, Resourceful, Forceful, Proactive, Spiritual, Family oriented, Friends oriented,Trendy, Giving,Optimistic, Hands on learners, Thrive on excitement



Known Weaknesses:Easily bored, Unfocused, Short sighted, Hates being alone, Sensitive, Can be tempted easily, Ignores needs of others, Hates Criticism, Overbearing, Boastful, Rash, Self absorbed, Self Centered, Immature, Over indulgent, Ignore conflicts than deal, terrible future planners, Materialistic, Does not deal well with structure



Personal commentary:

OHHHHH YES. The most fabulous robot in the underground. In reality, Mettaton has an on stage and off stage mode. On stage, he’s glitz and glamour,bold and 200% fabulous!





This ghost/bot is a natural star, he lives for the passionate screams of the fans. The blaring lights, the center stage. The gigantic spotlight. His high Se is the cause of this. He also loves to be surrounded by people, drawing energy by performing.

Mettaton is always lots of fun to have around- ESFPs are spontaneous, bold and impulsive, you’ll never have a boring moment with them.

They put the emphasis on FUN.

Off stage though, he’s an intensely private individual that reserves a special spot for his friends, shyren and napstablook and might still be intensely shy. (yes, shy ESFPs are possible!) But Mettaton seems to have forgotten them at first because he was too caught up with his dreams, but it does not mean he cares for them less!







ESFPs are also very protective and warm to their clique/circle of friends, genuinely caring about everyone in it.



There’s the private friends circle, and then there’s the everyone else who loves them and they love back circle.





He does his best encouraging people, and that’s shown by the various staff comments at MTT hotel if he dies.



There is no greater joy than making sure everyone in it is happy. It’s like a little family, although they are private people and not the closest to them!

ESFPs tend to like to give out emotional support and advice should the going gets tough.







They empathise by Fi instead of Fe, from the self to outwards, thinking about how it would feel if it happened to themselves (’He understood as he was also a rectangle/he always gave me a thumbs up when I felt bad’ etc ) Mettaton instinctively understood the troubles by relating to them like this. How they themselves would feel if it happened to them.



The only way you can utlise Fi in this manner to care for others is that one’s Fi is quite mature, but isn’t insusceptible to the darkness Fi can bring(selfishness/narcissist in king mettaton end)



Due to this, they’re always very understanding and basically the only staff at the hotel who doesn’t like them is Burgerpants and even then Mettaton tries to look after him in a way.

Mettaton holds his loved ones close to his heart, and a rare protective side comes out when they are threathened. He seeks to protect them but unfortunately he’s wholy inefficient at it when it comes to using brute force like all ESFPs do.



They prefer to avoid conflict, which might be potentially why he fails so hard as mettaton neo but is so hard as mettaton EX.

However, they are extremely cruel to their enemies (King mettaton end) and can sometimes be jerks who are extremely self absorbed to the point of being blind to the needs of others, but usually that’s not intentional.



If it is, it means they’re angry with someone. An ESFP loves people in general so if it’s intentional, it means they want to hurt. (Alphys in general, but part of it is also being blind to her needs. )

It’s oxymoronic because they’re also very very observant when something is wrong and want to make things right.





Never ask them to do financial or future planning. Or even rule. They are absolutely terrible at it. Complete shit.

He also shares Papyrus’s flunctuating self esteem but hides it far better than Papyrus did.

Name: Alphys



MBTI: ISTP



Functions: Ti Se Ni Fe



Known Traits: Spontaneous, Rational, Passionate, Energetic, Creative, Practical, Logical, Realistic, Great sense of humor, Loyal, Adaptable, Resilent, Calm, Good listeners, In tune with surroundings, Excellent troubleshooter,Sensual, Earthy



Known Weaknesses: Stays too much in comfort zone, prone to escapism, Unintentionally hurt feelings/people, Prone to inappropriate outbursts, escape and avoid problems, Overly private, Intentionally stir things up for excitement, Not in tune with others’ feelings,



Personal commentary:

Ahh the nerdy bisexual otaku scientist who has a penchant for magical girl anime! She’s so cute!



Alphys was a hard one as well precisely because her depression affected her personality, flipping everything around to look like an F type.

To get her real personality, I had to look at how she acts under stress, True labs and what she says when she reviews Mew Mew 2 and how she talks on her date.

She’s quite the curious,passionate person interested in tinkering things and figuring things out. One can imagine that she goes to the dump before she became royal scientist to find cool garbage that she can tinker with.

Alphys gets very very passionate about things she likes. Whether it be tinkering with things, or her favourite anime, she puts in her all. Her spontanity also helps her to build a giant sword and comes up with the specs for it.



ISTPs are usually excellent trouble shooters. Give them a problem, and they’ll fix it. Unlike ENTPs they don’t get that stressed when they encounter an unsolveable problem, they will just get even more pumped in cracking the code.



However, dealing with people isn’t her strong point. Gets worse under stress.

Due to depression, she becomes highly sensitive to how people regard her and look at her, manifesting her shadow function, Fe. She has problems being genuine to herself, and hate what she is, as well. Overly obssessed with how other people view her in an unhealthy degree, she becomes a liar.



A tendency for this type under is to store up all the painful experiences and truth somewhere in their head, and without letting it out, it is unhealthy.



Alphys is a woman who’s is pretty grounded on reality, but since reality itself became a major source of depression, she begins to engage in destructive behavior to her type by escaping reality using anime, a tendency that they have.

If not anime, she will have something else to escape their own problems.



It’s no wonder it got serious enough for her to contemplate suicide in many endings.









Conclusion

And there you have it! In depth MBTI according to their functions! Thank you for reading :) I appreciate it! Once again thanks to @screamingmbti and a friend for all this!

If you want to find out why one INFJ is different from another INFJ, do ennegrams!



Special thanks to fellow sans trashes( @nyublackneko, @junkpilestuff) whom I am able to discuss my findings with and help figure things out. LOVE YOU ALL!

