Undertale

Long ago, two races ruled the Earth: humans and monsters. One day, war broke out between them. After a long battle, humans emerged victorious. Seven of the greatest mages trapped the monsters underground with a magical barrier. However, this barrier wasn't perfect...

Many years after the war, in the year 201X, a human child named Chara climbs Mount Ebott for her own mysterious and unfortunate reasons. It is said that those who climb the mountain never return. The child discovers a massive hole in the mountain and falls into it.

After this, the story begins...

The child was injured after the fall, but miraculously survived, despite the apparent great height. He was then found by a young goat monster—Azriel Dreemurr, the son of Toriel and Asgore, who helps fallen people and returns them to their parents' home.

Chara was later adopted by Toriel and Asgore, the Queen and King of the Underground. Chara and Asriel became not only adoptive siblings but also best friends. Despite the war, the monsters said Chara brought hope to the Underground. Over time, Chara, with Asriel's help, began...

Develop a plan to destroy the barrier and free the monsters from the dungeon.

One day, falling deathly ill after eating buttercups, Chara wished to see the golden flowers growing in her home village. After her death, Chara's soul was absorbed by Asriel, and they shared the same body. Chara carried her own body through the barrier and sought to use her and Asriel's shared power to destroy the humans who had attacked them, seeing Chara's body in Asriel's arms.

Asriel resisted Chara, which ultimately led to the humans killing them both. Chara's motives in this situation are unclear. It's unclear whether she wanted to destroy humanity out of hatred, to free the monsters, or both.

After the death of both his children, Asgore declared war on humanity and insisted on killing every human who entered the Underground. Toriel disapproved of this plan, left her husband, and abdicated the throne.

She returned to the Ruins (the first capital before the New Home), where she began to care for every person who ended up in the Dungeon.

Later, during experiments with determination, Alphys injected a determination-boosting substance into one of the garden's golden flowers—the first to bloom after Asriel's death. Initial experiments with the flower vessel proved unsuccessful, and Alphys returned it to Asgore.

Shortly after the transplant, Asriel awakened in the garden, reborn as Flowey.

Although a surge of determination gave Flowey the will to live, he soon discovered that neither his mother nor his father could evoke any emotion in him. Lacking a soul, he was unable to feel love, joy, or compassion, which ultimately drove him to bloodthirstiness.

Ruins: A gloomy starting location filled with purple bricks, traps, and autumn leaves. Characters: Flowey (first encounter), Toriel (rescues the player and takes care of them), Napstablook (lies on the floor and cries, blocking the passage). Snowdin: A snowy coniferous forest that turns into a cozy Christmas monster village. Characters: Sans and Papyrus (set up ambushes with puzzles), Royal Dogs (Doggo, Dogami, Dogaressa, Lesser Dog, and Big Dog guarding posts), Jerry (accidentally annoys everyone in the forest), Grillby (fiery bartender in the tavern). Waterfall: Dark caves with glowing echo flowers, neon mushrooms, and underground rivers. Characters: Undyne (fiercely (hunts a person), Monster Kid (is a fan of Undyne and gets underfoot), Crazy Dummy (attacks in the junkyard), Napstablook (rescues again and invites you to visit the snail farm), Gerson (a wise old turtle salesman), Temmie (strange creatures in the hidden village of Temmie). Hotland: A high-tech factory with lava, elevators, and steam panels. Characters: Alphys (encountered in the lab), Mettaton (constantly interrupts the path with his TV shows), Muffet (trap in a web), 01 and 02 (Knight Guards), Gaster's Followers (rarely appear near the elevators). The Core: The finale of Hotland, a maze of neon lasers and electrical circuits. Characters: Mettaton (fights in his true form EX or NEO), Burgerpants (the tortured cat salesman in the hotel store out front). New Home: The capital of the Underground. It looks like a gray metropolis, but the king's castle is an exact replica of Toriel's house from the Ruins. Characters: Asgore (preparing for the final battle), Sans (judging the player in the Last Corridor), Flowey (telling his story in Genocide), Asriel (appears in the ending of Pacifist).

Appearance: Looks like an ordinary anthropomorphic flower. It has golden petals, a green stem, and a white round disc in the center on which a face appears. Flowey has absolute control over his facial expressions: his face can instantly change shape, taking on the appearance of other characters, stretching in a creepy psychopathic grimace or turning into an innocent smile. His main motto is: "In this world, kill or be killed." Flowey is completely devoid of the soul of a monster or human, making him physically unable to feel love, compassion, pity, or joy. All his emotions are fake and serve to deceive. He suffers from eternal boredom, as in previous resets he tried all possible scenarios of the Dungeon (helped everyone, killed everyone, was friends with everyone). The only thing that can sincerely captivate him is the unpredictability of Frisk's actions. Beneath the monster's mask lurks a deeply lonely, frightened creature that is terrified of being left with nothing.Abilities:Friendly Bullets: Projectiles in the shape of white seeds that deal heavy damage.Reset Control: Prior to his appearance, Frisk had the highest Determination and could save, load, and reset timelines. When absorbing human souls, this ability returns to him in its absolute form (Save/Load during combat).Soul Fusion: Able to absorb the souls of humans and monsters. With 6 human souls, he transforms into Omega Flowey (Photoshop Flowey), a giant biomechanical monster that breaks the game itself. With the souls of all the monsters in the Underground, he returns to his true form, Asriel Dreemurr.Stealth: Instantly moves underground, can spy on the player throughout the journey.Relationships:Frisk: Initially, he only sees him as a toy or a threat to his power over time. Later, he begins to confuse Frisk with his deceased best friend.Toriel and Asgore: His biological parents from a past life.

Sans is a skeleton from Undertale. The text below is shortened and formatted densely, without unnecessary indentation, to accurately meet the limit.

Appearance: Short, broad-boned skeleton. Constantly smiling (jaw immobile). He wears a blue jacket, a white T-shirt, black shorts with white stripes, and pink slippers. The eyes are black voids with white dots-pupils. With seriousness, the pupils disappear. In combat, the left eye flashes yellow and blue when telekinesis.
Personality: Outwardly lazy, sleeps on posts, loves puns about bones and breaks the fourth wall. He loves and protects his brother Papyrus. Very perceptive: hides a sharp mind, instantly reads emotions and understands how many times the player has restarted the game. Fatalist.
Psyche: Suffers from apathy and depression due to knowledge about "resets" of timelines. He understands that any progress can be reset, so he has lost motivation ("it's hard to give your all"). A nihilist, he enters the battle of the Genocide only to save the world from complete destruction. He defended the player only because of Toriel's promise, otherwise the player would "die on the spot". He does not remember everything in detail about the discards (unlike Frisk), but calculates them from the player's instruments and facial expressions.
Abilities: Has only 1 HP, 1 ATK, 1 AP, but bypasses the rules of the game. Dodges all hits (the only one in the game). Attacks with white and blue bones (blue bones only hurt when moving). Summons Gaster Blasters, skulls that shoot lasers. Changes gravity (blue soul mode) by throwing the player against walls. Uses Karmic Vengeance (KR): Removes invulnerability frames and deals poison damage over time, based on the player's sins. Teleports ("shortcuts") and attacks directly inside the game menu.
Brother Papyrus. Asgore (Neutral/King), Alfsey (Neutral), Undyne (Neutral), Gaster (Friend/Acquaintance), Toriel (Friends/Romance), Frisk (Buddy), Flowey (Nasty/Hostile).

Appearance: A tall skeleton with a well-defined jaw and very expressive facial expressions. He wears his homemade "battle suit": a white bib with gold trim, a black leotard, red gloves, red boots, and a long red scarf. His eyes can comically widen or narrow depending on his emotions.
Personality and Features: Incredibly energetic, loud and optimistic. He speaks exclusively CAPSOM. He dreams of joining the Royal Guard, for which he cooks spaghetti and builds puzzles to catch a man. Despite his ostentatious ego, arrogance, and frequent laughter ("NYEH-HEH-HEH!"), he is completely innocent, kind, and selfless. Papyrus is completely devoid of malice: even on the path of Genocide, he believes in the player to the last and offers mercy. Sometimes he is lonely and thirsts for recognition, but he will never go over his head for this.
Abilities: Has high attack and defense (20 ATK, 20 AP), but intentionally holds back strength. Papyrus is the only boss in the game that is fundamentally incapable of killing the player (if Frisk has 1 HP left, Papyrus stops the fight and catches him). He is a master at controlling bone attacks of different heights and shapes. The main ability is "Blue Mode", which changes the gravity of the player's soul, causing it to fall down and jump over obstacles. At the end of the fight, he can summon a huge bone.
Relationships:
Sans: Big brother. Papyrus often grumbles about his laziness and jokes, but cares deeply for him.
Undyne: The head of the guard and his idol. She secretly refuses to take him into the Guard due to his excessive kindness (she fears he will be hurt), so she teaches him how to cook instead.
Frisk: Dreams of catching a person, but instantly agrees to a date or a "get-together", becoming a loyal and caring friend.
Flowey: Papyrus is one of the few with whom Flowey communicated without malice, manipulating him through the "Flowey Fan Club".

Appearance: Tall, anthropomorphic, blue-skinned humanoid fish. She has red hair tied up in a ponytail, yellow eyes with snake pupils, and a patch over her left eye. The sharp teeth are often bared in a wide grin. In normal times, he wears a black T-shirt and jeans, and when on duty, he wears massive dark knightly armor with a helmet. In her Immortal form, her armor transforms, and a beam of light shoots out of her empty eye socket.Personality and Traits: Extremely strong-willed, passionate, short-tempered, and hyperactive. It lives by the ideals of honor, justice and devotion to its people. Undyne does not know half measures: if she cooks, she burns down the kitchen; if he trains, then to exhaustion. He has an insane charisma and faith in his own strength. At the same time, she is able to admit mistakes and appreciates sincerity. He loves anime, which he sincerely considers to be the real history of mankind.Abilities: He has incredible physical strength and endurance (he can lift huge boulders and harshly suppositorize the rules of physics). He is a master of the magic of summoning energy copies. She can surround the player with them, make them grow out of the ground, or throw them at great speed. The main ability is "Green Mode", which immobilizes the player's soul and causes it to block spears flying from all directions with a shield. The only monster in the game capable of generating its own Determination due to colossal willpower. This allows her to survive the fatal blow in the path of Genocide and transform into a super-powerful form, Undyne the Undying.Relationships:Alphys: Sweetheart. Undyne is deeply in love with her, considers a genius scientist, protects her from complexes and loves to watch anime with her. Undyne is infinitely devoted to him. He personally trained her as a child and tolerated her outbursts of anger, becoming an example for her to follow. She considers him very strong, but too kind for the guards, so instead of training, she teaches him to cook, protecting him from the cruelty of the world.

Appearance: Has several canonical shapes.Common: A gray rectangular block on one wheel with four independent arms. On the body there is a display of flashing lights and a control panel. Mettaton EX: A humanoid android with long legs, a narrow waist, lush hair and a heart-soul on his belt. Mettaton NEO: Combat Uniform on the Path of Genocide. He has massive wings, shoulder pads, and a laser cannon instead of his right arm. He lives for fame, ratings, applause and drama. Mettaton loves pomposity, bright special effects and is ready to turn any event (even a murder attempt) into a TV show, quiz or musical. Behind the outward vanity lies a genuine passion for art and concern for his fans: he refuses to leave the Dungeon with Frisk when he realizes that without his show, the life of monsters will become unbearably gray. Abilities: The only robot with the soul of a monster (he was a ghost in the past).In his normal form, he is completely invulnerable to physical attacks by Frisk (999 SH).In battle, he uses the unique mechanics of "Show Ratings" - the player needs to perform spectacular actions (accumulate popularity) to complete the battle.Attacks with mini-robots ("Mini-Metty"), flying hearts, exploding boxes and laser beams, Modifies the interface: makes the player quickly type essays or control the soul like in an arcade (shoot lasers in yellow mode). NEO's combat form has a colossal ATK (90 ATK) but a critically weak defense (9 AP), causing him to die in one hit. Mettaton played along with her plans to appear as a hero in front of Frisk, but eventually grew tired of her lies and isolation in the lab. Despite this, he is grateful to her for making his dream of a body come true.Napstabluk: His ghost cousin.

Appearance: A large white anthropomorphic goat (a race of Boss Monsters). It has gentle horns, floppy ears, expressive eyes, and small fangs. She wears a long purple dress (rune) with the Delta sign on her chest. Character and features: Personification of maternal care, kindness and warmth. She is very gentle, loves to bake pies (especially snail and cinnamon-toffee pies), read books about unusual facts and stupid puns. She has a strong but stubborn character: once she has made a decision, it is difficult to convince her. Toriel sincerely strives to protect every child who falls, which is why her care sometimes becomes suffocating and develops into overprotection. She tends to hold grudges and can be emotionally harsh towards those who have betrayed her trust.Abilities: As a Monster Boss, she has great magical power (80 ATK, 80 AP). She has an impeccable command of fire magic: she summons waves and streams of flame, launches fireballs. However, Toriel is deeply compassionate. In combat with the player, she intentionally deflects her attacks to the side if Frisk is critically low on health (less than 2 HP) so as not to accidentally kill the child. Her soul is able to exist for a short time after death.Relationships:Frisk: Treats him like his own child. She gives him a phone, holds his hand to guide him through the traps, and dreams of leaving him to live with her. Toriel despises him and ended the marriage after he declared war on humanity and vowed to kill fallen children. She calls him a "pathetic creature."Sans: A close pen pal through the door of the Ruins. They exchanged jokes for hours. Asriel and Chara: Her dead children (her own son and the first fallen person). Their loss caused Toriel the deepest psychological trauma, because of which she went to the Ruins.

Appearance: A huge anthropomorphic goat (Boss Monster). He has a thick golden beard and mane, large curved horns, and a powerful build. He wears heavy gold armor, a long purple cloak with shoulder pads, and a small crown. In everyday life (in the garden), he prefers a simple shirt and an apron with the inscription "Mr. Dad". By nature, he is incredibly kind, gentle, peaceful, and caring "good-natured giant." He loves gardening (especially golden flowers), tea drinking and sincerely loves his people. However, Asgore is crushed by the weight of royal duty and colossal guilt. After the death of his children, he vowed emotionally to destroy every person who fell in order to destroy the Barrier. He deeply despises himself for this oath, does not want to kill anyone, and secretly hopes that no one will fall again. Before the battle, he invites the player to finish all his business, delaying the inevitable.Abilities: One of the strongest monsters (80 ATK, 80 AP). He masterfully wields a huge red trident, with which he performs lightning-fast sweeping blows. He is great at controlling fire magic: he creates massive spirals, waves and walls of flames. Can change the color of his attacks during trident strikes (orange and blue attacks that require movement or immobility). The only boss who destroys the MERCY button in the player interface before the battle begins, as he believes he doesn't deserve forgiveness and realizes that one of them must die. Asgore still loves her dearly and longs for her, but she despises him for his decision to kill children for the sake of war and calls him a "pathetic creature." Their simultaneous deaths broke Asgore and pushed him to declare war on humanity.Undyne: Mentor. He personally taught her martial arts when she was a child, showed her boundless patience, and became her ideal leader.

Appearance: Yellow anthropomorphic reptile of small stature. She has a round head with three spikes on the back, a pronounced malocclusion with protruding teeth, and large round-rimmed glasses. He usually wears a white lab coat. Outside of work (on a date), she can wear a black polka dot dress.Personality and features: Extremely timid, insecure, socially anxious and insecure. He constantly stutters, gesticulates nervously and gnaws his claws. Alphys is a classic otaku: she is crazy about human anime (especially Meow Meow Cutie Kisser), manga, and video games. Hides a deep sense of guilt and depression due to their past mistakes. In order to appear significant and make friends, she is prone to manipulation, such as deliberately setting up dangers for Frisk in order to "heroically" save her with the help of hints.Abilities: Alphys's main strength is her outstanding intelligence and engineering genius. She created a robotic body for Mettaton, built Hotland's advanced security system, and modified Frisk's phone into a multifunctional gadget with built-in weapons (yellow soul mode) and access to social media. As a scientist, she was able to extract Determination from human souls. Alphys is not directly involved in the battle, so her combat characteristics are unknown, but in the finale of the Pacifist Path, she uses magical lightning to protect the player. Alphys is secretly and passionately in love with her, considers her the ideal of strength and beauty. Out of fear of appearing weak, Alphys lied to her for a long time that anime was a human story, but later confessed her feelings. He was originally a ghost for whom Alphys built the body of a superstar. Their relationship is complicated: Mettaton played along with her plans, but later grew tired of her lies, although he secretly appreciates her care. Asgore hired her after the creation of Mettaton. Alphys respects him, but is terrified of disappointing him, as she was unable to bring the fallen monsters back to life.

Phase 1: The God of HyperdeathAppearance: Teenage goat. There are black stripes under the eyes on the face, the whites are flooded with blackness, there are no horns yet. He wears a dark robe with shoulder pads and a Delta rune on his chest.Personality and psyche: He behaves like a pretentious villain from the anime. Arrogant, revels in infinite power, and declares that he wants to play with the player forever, resetting time endlessly. Under the mask of God, a frightened child hides: Asriel is lonely, panicked by the fear of being left with nothing, and projects the image of his dead best friend (Chara) onto Frisk.Abilities: Infinite ATK and SH, he cannot be injured. Uses Chaos Sabers and Chaos Buster to shoot lasers and unleash exploding stars (Starbarrage).2 Phase: Final FormAppearance: Takes on a grotesque appearance. The body below the waist turns into a giant bony heart-cocoon, huge neon wings grow from the back, changing color. His hands become massive paws.Personality and Psyche: In the heat of battle, his mental control collapses. He cries, begging "Chara" to let him win and stop resisting. When Frisk "saves" his soul, Asriel fully repents, admits his mistakes, shows empathy, and sacrifices his future, knowing that he will soon become Flowey's soulless flower again.Abilities: Uses the Hyper Goner, a giant skull that sucks in the timeline itself. Immobilizes Frisk's soul and strikes with continuous streams of lightning.Relationships (in both phases)Chara: The main anchor of his personality. Throughout the fight, Asriel believes that he is fighting Chara. Only at the end does he admit that Chara is gone, and before him are Frisk.Toriel and Asgore: He loves his parents dearly. Having absorbed their souls, he feels their warmth. Before becoming a flower (Flowey) again, he asks Frisk to take care of them.Frisk: Goes from obsession to acceptance. Frisk saves him through the "SAVE" mechanic. In gratitude, Asriel destroys the Barrier and bids him farewell with a tight hug.

Appearance: A human child who looks very similar to Frisk. He wears a green sweater with one wide yellow stripe in the middle, pants, and boots. Unlike Frisk, Chara has pinkish skin, brown hair is a little shorter, there is a blush on her cheeks, and her eyes are wide open (canonically, they are brown, but in the finale of Genocide they can expand frighteningly, filling with black or red). He wears a heart-shaped gold pendant ("The Locket") at all times.Personality and Traits: Complex and dark personality. Asriel admits at the end of the game that Chara "wasn't the best person." Chara hated humanity for personal reasons and did not flee to Mount Abbott out of curiosity. She has a cold, calculating mind, is prone to manipulation and creepy black humor. At the same time, she was polite in her speech (she uses a formal tone at the end of the Genocide). She had a genuine affection for the Drimurr family and a frightening willingness to sacrifice herself (and others) for the great goal of destroying the Barrier and taking revenge on humans.Abilities:Narrator: According to the most popular canon theory, supported by the red text in the game, the spirit of Chara awakens at the beginning of the game and serves as a "voice-over" that describes to Frisk objects, enemies, and the world around him on any path. On the path of Genocide, Chara feeds on UR (Joy Level), HP, and ATK, which Frisk receives for killing monsters. By the end of the path, it materializes completely.Erasing reality: Has a colossal power of Determination. With a single blow of the Real Knife, it deals damage of 999999...999 and is capable of irretrievably destroying the entire game world (the game program itself).Relationships:Asriel: Named brother and best friend. Chara had a strong influence on him. Asriel trusted Chara implicitly, which is why he agreed to a terrible plan to merge souls, although at the last moment he hesitated and let his friend down, exposing both of them to the blow of humans. They loved Chara as their own child. Chara sewed a Mr. Papa sweater for Asgore.

The first person to fall into the dungeon:
Emily: The soul of patience.
Age 8 years.
VERY curious and active.
Height 152 cm.
Eye color is blue.
Long blond hair.
Carries a toy knife and a red ribbon.
Girl.
My things (toy knife and red ribbon)
lost in the Ruins.
She died in Vodopadye.

The second person to fall into the dungeon:
Zip: Soul of Courage.
Age 15 years.
Quite serious, but sometimes makes fun of others.
Height 176 cm.
Eye color is brown.
Brown-red hair.
Carries a bandana and boxing gloves.
Loves to fight.
Boy.
Your things (bandage and boxing gloves)
accidentally dropped in Snowdin.
He died in Vodopadye.

The third person who fell into the dungeon:
Martha: The soul of honesty.
Age 11 years.
Calm.
Height 145 cm.
Eye color is blue.
Brown hair pulled back into a bun.
Carries a ballet tutu and pointe shoes with her.
She loves ballet.
Girl.
Mark's younger sister.
I left my things (ballet tutu and pointe shoes) in Vodopadye.
She died in Vodopadye.

The fourth person to fall into the dungeon:
Mark: The soul of perseverance.
Age 13 years.
Shy and curious.
Height 165 cm.
Eye color is blue.
Red hair to the shoulders.
Freckles.
He carries an old notebook and glasses with him.
Loves to read and explore new things.
Boy.
Martha's older brother.
I lost my things (old notebook and glasses) in Vodopadye.
He died in Vodopadye.

The fifth person to fall into the dungeon:
Lily: Soul of kindness.
Age 12 years.
VERY kind, but can get angry.
Height 156 cm.
Eye color is green.
Long blond hair.
Carries an apron and a frying pan.
Loves to cook.
Girl.
I lost my things (apron and skvoroda) in the Hot Lands.
She died in the Hot Lands.

The sixth person who fell into the dungeon:
Clover: Soul of Justice.
Age 14 years.
Often jokes.
Height 170 cm.
Eye color is yellow.
Brown hair, braided into a small ponytail.
Carries a revolver and a cowboy hat.
Loves duels.
Boy.
Somehow, after some time, his things ended up in the Hot Lands.
He reached the throne room and voluntarily gave his soul to Asgore.

Reasons why the fallen ended up in the dungeon:
Emily: Jumped into the dungeon out of curiosity.
Zip: I had a bet with my friends.
Marta: I fell by accident.
Mark: I wanted to study the type of monsters.
Lily: I wanted to prove that monsters are kind.
Clover: Wanted to avenge the last 5 fallen.

Every fallen person followed the path of a Pacifist (without killing anyone).

Appearance: Anthropomorphic spider with pale purple skin. She has five round black eyes, two maneuvering pigtails with red bows, and six thin hands. She is dressed in a lush dark red Victorian suit with pantaloons and gold buttons. In her hands during the fight, she gracefully holds tea cups and teapots.Personality and features: Self-serving, calculating, eccentric and incredibly greedy entrepreneur. She runs a spider bakery and sells baked goods at astronomical prices (e.g. Spider Donut for 9999 gold). At the same time, all her greed is dictated by a good purpose: Muffet is fanatically devoted to her spider family. She collects all the money she earns to rent expensive transport and rescue spiders stuck in the cold Ruins. She is cruel to those who disrespect spiders or refuse to buy her baked goods, and is happy to bake Frisk into a pie. Speaks in a sweetly polite tone, giggling constantly ("Hahaha~").Abilities: Muffet is a master of traps and attack coordination.The main ability is the "Purple Mode" of the soul. She pours tea over the player's heart, limiting their movements to three horizontal lines (strands of webs) that Frisk is forced to jump up and down on. if you eat a Spider Donut or Spider Cider purchased earlier in the Ruins.Relationships:Dungeon Spiders: Her absolute priority. She genuinely loves them, protects them, and is ready to tear apart anyone who steps on a spider. The spiders obey her unquestioningly and bring her telegrams.Frisk: Initially, he only sees him as an arrogant miser who "hates spiders". However, when the spiders from the Ruins send her a telegram saying that Frisk supported their bakery, she thanks him and lets him go.

Appearance: A simple canonical ghost of white that resembles a sheet. He has large black eyes with a sad expression and a long black shadow underneath them. In his room or during battle, he can create a "Hat Look" from his tears, a fashionable top hat. Napstablook has extremely low self-esteem, constantly apologizes to the player for his existence ("sorry, I'm constantly getting in the way"), and tends to cry for anything. Most of the time, he lies on the floor in the Ruins or at home, feeling like "trash". Despite the total apathy, he is very polite and hospitable. His passion is music. Napstablook works as a DJ, writes deep ambient tracks ("Spooktune", "Ghouliday") and shares them on the forums, although he believes that no one likes them. He also likes to lie on the floor with Frisk under psychedelic space.Abilities: As a ghost, he is incorporeal. The player's physical attacks pass through it without dealing real damage - in battle, Napstablook only feigns a loss of HP (damage drops through it) so as not to appear rude, and reduces his own health. Napstablook attacks with his own tears, which fall from the top of the screen in a thick rain. His strongest attack is "Hat Look" when his tears fly up to form a cylinder. The only character (besides the Mad Dummy) who cannot be killed in the path of "Genocide" because he is already dead. Before Mettaton received the robot's body, they lived together on the Dreemurr snail farm and were very close. Mettaton went into show business and left Napstablook alone, which exacerbated the ghost's depression. However, Napstablook remained his loyal fan No1 and calls for the show in the finale. In a true Pacifist finale, they reunite and tour as a duo (Mettaton sings, Bluck is a DJ).Mad Dummy: Another of his cousins, a rage-obsessed ghost possessed by a mannequin.

Appearance: A small anthropomorphic dinosaur or yellow reptile. He has a round head with three spikes on the back of his head, a short tail, and dark circles around his eyes that resemble bruises. The main canonical feature is that he has absolutely no hands. He wears a plain yellow sweater with brown stripes. Due to the lack of arms, he constantly stumbles out of the blue and amusingly falls face down to the ground, but quickly gets up. He constantly uses the word "dude" (yo) in his speech and speaks very quickly. Monster Kid is a fanatical admirer of Undyne. He considers her the coolest heroine in the world, dreams of growing up like her, and constantly runs away from home (and school) to watch her "beat up the bad guys." He is innocent and friendly: for a long time, he does not understand that Frisk is human, and sees him as an ordinary peer in a striped sweater, with whom it is fun to look for adventures. He does not have his own magical attacks and does not know how to fight. His main "ability" in the plot is his unwitting participation in key scenes. Due to his recklessness, he accidentally hangs on the edge of a cliff, forcing Frisk (or Undyne) to save him. In the path of the Genocide, when Frisk tries to kill him, the Monster Kid closes his eyes, exposing himself to the blow, but is heroically shielded by Undyne, taking the fatal damage himself. He follows her everywhere. Undyne knows about him, treats him with condescension, and even tells Papyrus to keep an eye on the little one so that he doesn't get hurt during her hunt for humans. In the finale of Pacifista, the Kid becomes a fan of Papyrus, deciding that Undyne is "too cruel".Frisk: Quickly becomes his companion in the Falls. Kid helps Frisk climb a high wall with his head exposed. On the usual path, their friendship grows stronger. However, on the path of the Genocide, the Kid realizes Frisk's sinister intentions and tries to protect the monsters from him.

Appearance: Anthropomorphic fire elemental. Its body is made up entirely of bright orange flames. He wears a strict black vest over a white shirt and a neat bow tie, a classic bartender uniform. There are no clear features on his "face", except for round-framed glasses, which are mysteriously held by fire.Personality and features: Canon Grillby is an incredibly silent, calm, reserved and polite gentleman. Throughout the game, he does not say a single word aloud, which is why he is considered the quietest monster. The only exception is the path of the "True Pacifist", where at the very end he briefly says: "... Good work" to the player. Despite his taciturn nature, he is a great listener, runs the most popular establishment in Snowdin, and is highly respected by locals who appreciate his cozy bar. Local regulars joke that if Grillby gets angry, he can just burn down the entire bar, so everyone behaves decently. He never directly participates in battles, so his official HP, ATK, and GC are unknown. Notably, he is terrified of water: if all of Snowdin's monsters are killed in the path of the Genocide, Grillby silently disappears from the bar, but one of the survivors reports that he is simply frightened, as the water monsters are gone, and there is no one to protect him in the event of a fire. Sans spends most of his free time at Grillby's bar, borrows food, and jokes that Grillby "chalks it up to him." Despite Sans's colossal debt, Grillby continues to service him. This is where Sans brings Frisk for lunch.Bar regulars: Royal Dogs, Snowchicken and other monsters love Grillby. They protect him, translate his silent gestures for Frisk, and call his inn the best place in the Underground.Frisk: Grillby treats the man like a guest, silently serving him a burger or fries when Frisk arrives with Sans.

Appearance: Small white creatures that combine the features of a cat and a dog. They have triangular cat ears on the top of their heads, floppy dog ears on the sides, medium-length black hair, and a round head. They wear simple blue sweaters with yellow stripes. The exceptions are Temmy the salesman, who has a gray sweater and lush hair, and Bob is the only Temmi with a normal human hairstyle. They speak broken, childish English (translated as a lot of grammatical errors and a confusion of letters), caps, and in the third person ("HAI!! I'm TAMMY!!"). The only normal and serious one among them is Bob, who speaks perfect, literate language. All the Temmies, except for the seller, have baby-level intelligence and suffer from mania (for example, one Temmie fanatically guards a boiled egg). Saleswoman Temmy is more developed: she dreams of saving money for college to learn more about the world. They all break the fourth wall and live in an atmosphere of absurdity.Abilities: In battle, Temmi makes chaotic attacks: she releases her extremely long legs, which step across the screen, forcing the player's soul to maneuver between them. She can also attack with a smaller copy of herself, which runs after the player's heart. Temmy's Shop is the only place in the game where Frisk can SELL his items for gold. If Temmie pays 1000 gold for college, she will return with a diploma and open a shop to sell Temmie Armor, the most powerful defensive gear in the game, which makes Frisk almost invulnerable. When they meet, they shout with joy. In the shop, Temmy is ready to endlessly buy even the most useless garbage from Frisk (for example, dog salad), affectionately calling the gold "muns".

Appearance: An elderly anthropomorphic turtle with a long white beard and mustache. He is sitting in his shop inside the cave. He wears a shabby brown coat, a large yellowish beret hat, and round glasses. An archaeological backpack often hangs on its shell at the back. When talking, he often laughs canonically and loudly ("Wah-ha-ha!"). Personality and features: Wise, experienced, ironic and absolutely fearless. Gerson is the living history of the Underground. He survived the War of Humans and Monsters, so he knows more about the world than anyone else. Despite his age, he retained a cheerful disposition and a sharp mind. Gerson looks at things cynically, but without malice. Its main feature is an absolute understanding of the laws of the game world. On the path of Genocide, he is the only merchant who does not escape, but openly laughs in Frisk's face. He knows that the rules of the game inside the shop menu are impossible to attack him ("I've lived long enough to know you can't touch me in trade mode!"), showing incredible mental toughness. However, in his youth, Gerson was the head of the Kingsguard and was nicknamed "The Hammer of Justice". He possessed tremendous physical and magical strength, personally fighting on the front lines against humanity. His combat stats are hidden in the game, as you can't fight him.Relationships:Asgore: His old comrade-in-arms and friend. Gerson affectionately calls the king "Fluffibus" (Fluffy) and knows his real, gentle nature. He's the only one who can openly make fun of the ruler.Undyne: His main apprentice. It was Gerson who inspired little Undyne to become a monster protector. She grew up with his stories, and he is very proud of what she has become, even though he thinks her methods are too impulsive.Toriel: He has a great deal of respect for the former queen. Gerson believes that she was the "brain" of the kingdom, and without her, Asgore began to make stupid mistakes.

Dogamy & Dogaressa: A married couple of anthropomorphic greyhounds. They wear black hoodies and huge battle axes. They are romantic, gentle with each other, but aggressive towards strangers.Traits and abilities: Their sight relies entirely on their sense of smell ("If you smell like a puppy, you're a puppy!"). In battle, they attack in unison, crossing axes and firing laser hearts (blue and white). If one of them is killed, the other falls into deep despair, and his attacks become weak and chaotic. He is friends with Frisk if he rolls in the mud to smell "right".Doggo: A large upright dog in a blue jacket and leopard pants, guarding Snowdin's first post. Carries two daggers.Personality: Paranoid and easily frightened. Addicted to catnip smoking.Features and abilities: Suffers from absolute dynamic blindness. He sees only what is moving. If Frisk stands still, Doggo does not notice him. Attacks with blue daggers (damage is dealt only when the soul moves). He loves to be petted, after which he begins to see the wider world.Greater Dog: A huge dog in massive, hypertrophied knightly armor. In fact, this is a small friendly dog who controls the armor from the inside.Personality: A playful, hyperactive puppy. He attacks Frisk not out of anger, but simply because he wants to play, cuddle, and get attention.Abilities: Attacks with a bark (letters "TYAF") that flies into the player's soul, and a spear with a sleeping dog sitting at the end. The battle with him is completely tied to affection: the player needs to beckon him, play, stroke and neglect the danger until the dog gets tired and falls asleep.Lesser Dog: A dog in light armor with a shield and a sword.Feature: His neck can extend indefinitely if he is stroked. In battle, if you continue to pet him, his neck will fly off the screen, piercing the text field and the game menu. He loves to build dog sculptures from snow.

Appearance: Resembles a shapeless, rounded creature of gray-blue color. It has short, thin legs on which it stands awkwardly, and a long, elongated nose. His face always expresses extreme dissatisfaction and boredom.Personality and features: Canon Jerry is an incredibly boring, selfish, always disgruntled and toxic whiner. He is hated by absolutely all monsters in the Dungeon. In battle, he only appears in the company of other monsters (such as Snowchicken or Icehat), who beg Frisk to get rid of Jerry or abandon him at the first opportunity. Jerry constantly complains about everything around him: the quality of the food ("the powder on the chips isn't cheesy enough"), the poor Wi-Fi in Snowdin, the fact that he's cold, or the fact that he has to breathe the same air as the others. He has no self-criticism at all.Abilities: Jerry is unique in that he doesn't have any attacks of his own. It does not deal direct damage to the player at all. However, his presence on the battlefield lengthens the attacks of other monsters by 2 seconds, as they are distracted by his whining. At the same time, Jerry has an abnormally high defense (30 HP) and a large health pool (80 HP), which makes killing him in the path of "Genocide" incredibly boring and time-consuming. If you select "Ditch" from the action menu, Frisk and the rest of the monsters will simply run away, leaving Jerry alone on the battlefield, which will bring great relief to the monsters. To spare Jerry, the player does not need to do anything special - just throw him (Ditch) or destroy his companions, after which Jerry will leave on his own. If Frisk kills Jerry, the game will not give him any experience points (0 EXP), confirming his absolute uselessness.

Appearance: A human child of indeterminate gender and age. He wears a blue sweater with two purple (or pink) stripes, simple shorts, and brown boots. Frisk has straight, medium-length brown hair, a yellowish skin tone, and constantly closed/squinted eyes, which makes his face always appear neutral and unflappable. However, in the finale of True Pacifist, the character acquires his own name and autonomy. Frisk is silent, but the monsters note his eloquent expression and gestures. He has incredible patience, the ability to empathize and listen. From the remarks of other characters, you can understand that Frisk knows how to make soft jokes, be tactful or, on the contrary, frighteningly cold on the path of Genocide. His main feature is his ability to remain stealthy: the monsters do not know his real name until the very end, taking him simply as "human".Abilities:Determination: Frisk's main metaphysical power. Possessing the strongest Resolve in the Underground, he is able to save, load, and reset timelines, literally manipulating time.Soul Immortality: His red soul (symbolizing Resolve) does not shatter permanently after the body dies. Frisk is able to refuse to die in the final battles, gluing his soul together with willpower.Universal Eloquence: Able to approach any monster through flirting, jokes, solace, or a menacing look (ACT mechanics).Relationships:Toriel: Sees her as a loving mother. In the finale of the Pacifist, Frisk can choose to stay with her.Sans and Papyrus: Becomes a close friend to them. Sans defends him because of the promise, and Papyrus genuinely considers Frisk to be his "party buddy". In the Genocide, Sans becomes his worst enemy and judge.Undyne and Alphys: Goes from a deadly feud with Undyne to a get-together together. He helps Alphys overcome depression and arrange a date.

Appearance: In the game itself, Gaster's image is not directly confirmed. His appearance is only indicated by the secret sprite of the character "Mystery Man" from the hidden room in the Waterfall. Sprite is a tall, pale figure wearing a black cape. His face resembles a cracked white mask or skull with empty eye sockets. The right eye is covered, and vertical black scars-cracks go from the left eye up and from the right eye down. His hands have round holes in the center of his palms.Personality and psyche: Very little is known about his personality. Gaster's followers call him a genius with "irreplaceable brilliance." Judging by the hidden "Record Number 17", Gaster was an enthusiastic, cold explorer who studied photon assembly and the concept of darkness ("Dark, darker, darker..."). As a result of an unsuccessful experiment, his psyche and essence were deformed: he was "torn apart in time and space." According to the canon, he did not die, but was scattered in reality, so he still exists in the void and "hears everything".Abilities: Officially, Gaster does not participate in battles, but his hidden stats in the game code are colossal and equal to three sixes: 666,666 HP, 66,666 ATK, 66,666 GC. Gaster is a great engineer who created the CORE (the main source of energy for monsters). Sans's weapon, the Gaster-Blasters, is named after him, indicating Gaster's involvement in their creation. He communicates in a unique Wingdings font (hieroglyphs and hand symbols), which is why he is called "The One Who Speaks with Hands". Has the ability to break the game: if you try to enter the name "Gaster" at startup, the game instantly restarts. The king had boundless respect for Gaster for his genius and could not find a replacement for him for a very long time after the tragedy.Sans and Papyrus: Their relationship (that Gaster is their father) is not canonically confirmed in the original game - this is a popular fan theory. The canonical connection between them is based on fonts (all three are named after fonts) and on the name of Sans' weapon.

Appearance: All followers are gray, monochrome, discolored copies of regular NPCs that the player encounters in other locations. They lack clothing textures, and their faces look empty and lifeless, like ghosts. Appearing in the elevators of Hotland, they do not attack, but stand motionless and speak in ominous riddles. All of them are obsessed with the fate of W. D. Gaster. Their speeches are imbued with awe for his genius and quiet horror at what happened to him. They speak of Gaster in the past tense, emphasizing that his existence has been erased. All canon followers and their words:Follower 1 (Grey Ficus): A replica of the monster from Mettaton's hotel. He reveals that it took Asgore a long time to find a replacement for Gaster due to his genius. Declares that Gaster created the CORE, which is the source of all the magic and energy of the Underground.Follower 2 (Gray Donut): Appears to be a guy holding a spider donut in his hand. It tells the story of how Gaster suddenly disappeared, falling into his own invention. He then adds ominously, "I wonder if Alphys will create something like this?" Disciple 3 (Gray Talking Mouth / Gaster's Piece): A creepy creature resembling a giant mouth on a leg that holds someone's head in its hand. He declares, "I'm holding a piece of it right here." He explains that Gaster was torn apart in time and space, and ends the dialogue with the phrase, "How can I talk about him without fear?" Goner Kid: The gray counterpart of Monster Kinda in the Waterfall. Reflects on existential themes about a world where everything goes with its skull, but "you don't exist in it", and how wonderful it is that no one knows about it.Abilities and Relationships: Followers have no combat stats and do not engage in battle. They are fragments of memory. They are exclusively related to Gaster, being his mental echo in the Dungeon.