The Human (Undertale)

Background

The Human is the main protagonist of Undertale, who is controlled by The Anomaly. Throughout the game, the human will either make friends or kill everything in their path deciding on what The Anomaly chooses. In-game they rarely speak, but they're capable of speaking on the phone with people and make various different actions depending on choices made.

This dropdown contains the synopsis of The Human’s story. Read at your own risk as you may be spoiled otherwise!

Neutral Route Flowey attempts to kill the human after he pretends to offer honest advice. Toriel intervenes, hits Flowey with fire magic, and serves as a guide to the Ruins. At the end of a long room, Toriel asks the human to wait for her to return and states that she has errands to do. To be safe, Toriel gives the human a cell phone to call her with. The Human travels through the remaining puzzles in the Ruins and eventually arrives at Toriel's home. They ask Toriel "how to exit the RUINS," which prompts Toriel to destroy the Ruins's exit. Toriel then battles the human because she wants them to prove that they can survive outside of the Ruins. Then, the human meets Sans and Papyrus in Snowdin Forest. The brothers set up traps and puzzles in an attempt to capture the human. After passing through Snowdin, Papyrus battles the human. Undyne, the head of the Royal Guard, pursues the human throughout Waterfall. Monster Kid often saves the human from Undyne by accident because they are so excited to see Undyne in action. After a chase scene, Undyne destroys a bridge that the human is standing on, and the human falls into the Garbage Dump. Before they get up, they recall a memory from the first human. In the garbage dump, Mad Dummy battles the human after accusing them of mistreating their cousin, Dummy, in the Ruins. At the end of Waterfall, Undyne battles the human after she gives an abridged monologue atop a crag. After entering Hotland, the human enters a lab and meets Alphys and Mettaton. Alphys tells the human that she is not a bad guy, and Mettaton interrupts them with a quiz show. Alphys gives the human an upgraded cell phone after the quiz show concludes. She guides the human through Hotland and the CORE, helping them solve puzzles and evade Mettaton. Before his battle at the end of the CORE, Mettaton reveals that Alphys had created all of the traps in Hotland in an attempt to endear herself to the human. He then transforms into Mettaton EX and battles the human. While passing through New Home, the capital of the Underground, the human learns the story of Asgore and Toriel's children from passing monsters. Then, Sans judges the human in the Last Corridor and explains the meaning of LOVE and EXP. He also emphasizes the human's importance in the fate of the world. The Human enters the Throne Room and finds Asgore, who tries to make small talk, only to realize their fated confrontation. The two walk to the Barrier and Asgore gives the human one last opportunity to leave before fighting. Just before the fight, Asgore shows the six collected human SOULs, preparing the containment process after the battle. Right before the fight starts, Asgore destroys the MERCY button with his trident, making it impossible to spare or flee. However, at the fight's conclusion, the human can explicitly choose whether to spare or kill Asgore. Regardless of the choice made, Flowey appears, destroys Asgore's SOUL and takes the human SOULs. The game then abruptly closes. After reopening the game, the human finds that Flowey has saved his own game over the SAVE file, having gained the power to do so with the stolen human SOULs. Loading Flowey's game, the human confronts a powered up Flowey and defiantly steps forward, entering an initially hopeless battle with him. After the human calls for help several times, the stolen SOULs begin to revolt: first, they heal the human, and then they weaken Flowey, leaving him vulnerable to destruction. After reducing his HP to 0 and listening to his monologue, the SOULs remove Flowey's ability to SAVE or LOAD. After this, the SOULs leave the human and Flowey alone. At this point, there is an option to kill or spare a weakened Flowey before leaving the Underground, return to the surface, and end their journey. After leaving the Underground, the human receives a call from Sans, who leaves a message about what happened to the Underground after Asgore died. This varies based on what monsters were killed and what friendships were completed. True Pacifist Route To complete the True Pacifist Route, the human must have first completed the Neutral Route. If the human has completed the Neutral Route without gaining any EXP or LV (i.e. without killing anyone), it is possible to backtrack in the existing SAVE file to complete any missing friendships, then achieve the True Pacifist ending. If the human acquires any EXP or LV, they have to reset the game to reach the True Pacifist Ending. While the human befriends many of the monsters in the Underground, only the Undyne, Papyrus, and Alphys friendships are required to achieve the True Pacifist Ending. The Human gains Papyrus's friendship by visiting him at his home and hanging out or dating him. If the human chooses to give Undyne some water after being pursued, Undyne can be befriended (if they have not gained any EXP beforehand). Otherwise, a reset is needed to achieve Undyne's trust and friendship. The Human visits Undyne with Papyrus's help, and Undyne gets "revenge" by trying to befriend the human and become "besties", setting her house on fire in the process. She tries to fight the human to regain honor but realizes that the human is a "wimpy loser with a big heart" just like Asgore and decides to be friends. Undyne, having been encouraged to send a love letter to Alphys, gives the letter to the human, who delivers it to Alphys. This results in a date sequence with Alphys in which she and Undyne realize their feelings for each other and Alphys begins to come to terms with her past mistakes. After befriending Alphys, Papyrus recommends traveling to Alphys's lab. In the lab, there is a letter on the floor that, when picked up, reads a monologue and the instructions needed to proceed to learn "the truth." Walking through the bathroom door reveals an elevator which goes down to the True Lab after a malfunction. The Human proceeds to explore the True Lab and along the way learns of Alphys's failed experiments (amalgamates) with determination and also about the origin of Flowey. After exploring the True Lab and talking to Alphys, she gains the confidence to reveal the truth about her experiments to the rest of the Underground. While attempting to leave, the human receives a phone call in the elevator from an unknown voice. The elevator immediately and forcibly brings the human to New Home. After returning to the throne room and confronting Asgore again, the pre-fight dialogue is interrupted by Toriel, who stops Asgore from fighting the human. Toriel is immediately followed by the other main characters who encourage everyone to get along. However, in a surprise twist, Papyrus reveals that it was "a tiny flower" who told him to bring everyone there. Immediately after this reveal, Flowey appears, having again stolen the SOULs of the six other humans. He attempts to kill the human, but Undyne, Toriel, Alphys, Asgore, Sans, and Papyrus use their power to block Flowey's finishing blows. Directly after this, all of the Underground's monsters arrive to encourage the human in the fight against Flowey. However, Flowey reveals that this is what he wanted all along so that he could absorb the souls of all the monsters in the Underground along with the six human SOULs. Due to the immense power gained from the six human SOULs and all of the monster SOULs, Flowey can transform into his true form, and just before the fight begins it is revealed that he is actually Asriel Dreemurr. During this fight, the human is invincible, and any hit that would normally result in death instead causes the heart to split, but reform back together. The first time this happens, it is accompanied by the text "but it refused." After stalling for long enough, Asriel transforms again. At this point, the human can feel the souls of Toriel, Asgore, Alphys, Undyne, Papyrus, and Sans within Asriel and the ACT button changes to SAVE to represent the act of freeing everyone's souls. This is accomplished by completing a short sequence of ACT options to restore the memory of each lost soul after selecting the said lost soul of a chosen character. After saving each monster, the human realizes that there is still one more person to save. After choosing to save "someone else," Asriel's memories of the first human (who strongly resembled the human) begin to play in a slideshow style. It is then revealed this "someone else" is Asriel himself. After this, Asriel starts to feel the love the monsters feel for the human through the souls he has absorbed, and slowly loses the will to fight as he is overcome with his fear of dying alone. After reverting to his child form, Asriel learns the human's name, Frisk. He apologizes for hurting everybody, and Frisk can choose to forgive or not forgive Asriel. Regardless of the choice made, Asriel destroys the barrier using the power of all of the SOULs before releasing them. Knowing that he will turn back to a flower without the power of the SOULs to sustain him, Asriel says one last goodbye to Frisk before leaving. At this point, there is a choice to hug Asriel or do nothing. After the scene with Asriel finishes, Frisk wakes up in front of Toriel, Sans, Papyrus, Undyne, Alphys and Asgore. While the monsters remember little about Flowey and nothing about his incarnation as Asriel, they do know Frisk's name. At this point, Frisk can backtrack through the Underground and talk to the other monsters, before returning to the surface. If Frisk backtracks through the Ruins, they can find Asriel tending to the Golden Flowers. Asriel asks about Frisk's desire to travel up Mt. Ebott in the first place. Receiving no answer, Asriel lists off foolishness or fate as possible motives, but comes to the conclusion that "only you (Frisk) know the answer." After passing through the final door to the surface, Frisk leaves the Underground with their friends. Asgore offers Frisk the chance to be the monsters' ambassador to the humans. Most of the main monster cast then leave, except for Toriel, who asks about Frisk's plans. At this point, Frisk can choose to stay with Toriel or to go elsewhere. After choosing to stay with Toriel, the ending scene shows Frisk sleeping in a bed, and Toriel bringing a slice of pie to Frisk's bedroom. Otherwise, if Frisk has "places to go," Toriel ends their conversation with "Frisk. "See you around."" As Toriel leaves, Frisk turns north and does not watch her. The game ends with a group photo of the main monster cast with Frisk in the middle. Genocide Route While traversing the Genocide Route, many characters comment on the protagonist's creepy smile. Sans comments that it would be great if the protagonist continued pretending to be a human, and Asgore inquires what kind of monster the protagonist is. At the end of the Ruins and when going through New Home, Flowey determines that the protagonist is empty inside, just like himself. He concludes that the protagonist is Chara, and informs them of a plan he has to become omnipotent.

General Information

Name:

Spoiler-FreeSpoiler

The Human

Frisk

Origin: Undertale

Sex: Unknown (Their Sex is left up to interpretation)

Age: Unknown, likely Pre-Teens (Referred to as a kid by Toriel and Sans)

Classification: Surface Dweller, Angel & Angel of Death (In Geron's story there's an angel noted in the prophecy, where an angel will descend from above and free the monsters, though this can be interpreted as either saving them or a harbinger of destruction waiting to 'free' them from the mortal realm, with pacifist and genocide route reflecting both)

Species: Human

State of Being: Regular

Occupation: Ambassador for Monsterkind (If the human says yes to Asgore Dreemurr in the true pacifist ending)

Affiliations: Underground (Pacifist Route and Some of Neutral Route), Spiders (In routes that they they donate to them), Humanity (In Pacifist and Neutral Routes)

Enemies: Humans & Underground (During genocide route. Directly noted by Undyne the Undying during a genocide route that the human is the enemy of both humans and monsters), Asriel Dreemurr (During True Pacifist Boss Fight), Flowey (During pacifist and neutral routes)

Status: Alive, Other after genocide route (After completing the genocide route, every ending shows that the human has been fully possessed by Chara)

Alignment: True Neutral (The Human will choose any path that they want to see how the outcomes may go, regardless of their choices they will keep going because they are determined to)

Codex Statistics

Key: Physical Form | SOUL Form | Full Determination

Grade: A | A | S

Tier: At least 10-A, possibly Higher | At least 10-A, possibly Higher | At least 10-A, possibly Higher

Cardinality: Finite

Dimensionality: 3-D

Attack Potency: At least Peak Human level, possibly Higher (As stated by the "librarby" books, humans in their physical forms are far stronger than monsters. This should scale the human to monsters. Can harm enemies that can harm them) | At least Peak Human level, possibly Higher (Defeated Asgore in combat, however, as stated by the librarby, monsters are weaker when they don't want to fight. Along with this, a human's SOUL form is made specifically for a way for monsters to fight humans outside of their physical forms) | At least Peak Human level, possibly Higher

Durability: At least Peak Human level, possibly Higher (Should be comparable to the likes of Chara, who survived a fall from the mountain top. As humans in their physical forms are far stronger than monsters, the human's durability by proxy should scale) | At least Peak Human level, possibly Higher | At least Peak Human level, his Determination and Resilience makes him incredibly difficult to kill (Despite the immense difference in power, the human is able to survive attacks Asriel throws at him, something not logically possible but due to their determination, they refuse to die to Asriel)

Striking Strength: Below Average Human punching force during Pacifist Route (Even punching at full force, the human only knocks over a tomato, along with attacking Undyne seriously only dealing 1 damage, this is due to Pacifist Route human having no capacity to harm people). At least Peak Human Class, possibly Higher | At least Peak Human Class, possibly Higher | At least Peak Human Class, possibly Higher

Lifting Strength: Average Human (Can casually lift the Annoying Dog along with other items on their person) | Average Human | Average Human

Travel Speed: Average Human (Could somewhat outrun Undyne for a bit) | Average Human, Higher with Sea Tea (Sea Tea increases the human's SPEED for the entire battle) | Average Human

Attack Speed: Transonic | Transonic | Transonic

Reaction Speed: Transonic (Shouldn't be any slower then their SOUL form) | Transonic (Can maneuver and dodge around the Greater Dog's barks, a sound based attack) | Transonic

Stamina: Average, Superhuman with Full Determination (Can repeatedly create dreams from nothing and withstand even the most powerful attacks)

Range: Standard Melee, Extended Melee with other weapons, likely Hundreds of Meters with Empty Gun, Universal to Multi-Universal with Reset (Causes the human to go to a new timeline with each reset), Multiversal with True Reset (Resets the entire Undertale multiverse)

Intelligence: Above Average (Can solve many puzzles to progress within the Underground)

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Powers and Techniques

Innate AbilitiesWith ItemsWith DeterminationWith True Reset

Superhuman Physical Characteristics, Weapon Mastery (Can use a huge assortment of weapons), Impossible Permutation (The Human through their determination re-fuses to accept any possibility where Asriel wins, not resulting in any timeline where Asriel succeeds), Immortality (Immortal Metaphysical Aspect; When a human dies, its soul remains stable outside the body), Absorption (Monsters and humans can absorb the SOUL as long as the person isn’t the same species as them), Soul Manipulation & Essence Manipulation ( All monsters and humans can perform attacks that can damage the SOUL), Invincibility Frames (It is stated that taking damage causes the human to become invulnerable where attacks pass through them), Limited Spatial Manipulation (The Human was able to visibly move the fight box up), Limited Dimensional Travel (Can forcibly enter a monster's Personal Domain and can leave personal domains), Unlimited Ammo (Can fire bullets out of the empty gun, which has no ammo), Flight (Through their jet pack), Information Analysis (By using the act Check, Chara will give them the enemy's stats), Statistics Amplification (By using the act Flex they boost their strength, while using the act Clear Mind will boost their defense), Statistics Reduction (By using the act Stare the human can weaken magical orbs), Creation (By using the act Draw the human can create stuff by drawing]), Heat Manipulation (By using the act Heat Up, the human can greatly heat up the entire room, making even the text melt), Damage Reduction (By using the act Hope the human can lower incoming damage), Subjective Reality (By using the act Dream the human can create Last Dreams, which are items that can heal them), Sleep Manipulation (By using the act Sing, the human can put targets to sleep), Transformation and Energy Projection (Partial Transformation; By using the yellow button on their phone their soul turns yellow which allows them to shot energy based projectiles).

Limited Resistance to Power Nullification (When Asriel was knocking away all of the human other item commands the SAVE prompt still remained), Resistance to Soul Manipulation & Essence Manipulation ( Type 3; Can survive attacks to their SOUL), Extreme Heats (Unaffected by heat from the MTT-Brand Oven that burned down Undyne's house)

Healing (Via various kinds of healing items, the healing is also metaphysical via healing the SOUL. Stained apron heals every turn. At FD the human can use their determination to create “last dream” which heals him greatly), Statistics Amplification (Items like sea tea increase the human’s speed, Torn Notebook, Cloudy Glasses, & Temmie Armor increases invincibility, Cowboy Hat & Punch Card increases strength, armors and weapons naturally increase both strength and defense), Limited Power Nullification (With the hush puppy, will stop a dog from casting magic)

Sheer Will (All holders with determination logically have large amounts of willpower), Time Travel & Timeline Hopping & Save and Load (Travels back to a specific point in time while hopping through timelines, users with a greater amount of determination can use this to save and load through all existing timelines), Limited Reality Separation (Reality Separation; Exist outside of reality as shown in the scene where Photoshop Flowey creates a SAVE File that the human is outside of within his SAVE File is the human’s original SAVE File which Photoshop Flowey comes out of), Subjective Reality & Creation (The Human can create “last dream” to heal themself), Information Manipulation (Total; Photoshop Flowey re-wrote the history of the war between monsters and humans), Erasure (Space-Time Erasure (3+1-D); Erased all inhabitants of the current timeline and a save file), Reality Warping (Determination is described as the power to re-shape the world, and Photoshop Flowey re-shaped the world in his own image), Possible Fate Manipulation (Determination gives the user the ability to change fate itself, and events to allow them to live even outside of merely time traveling. Examples include Papyrus' special attack suddenly taken over by the dog, and Papyrus states that if special attack was used the human would've of died, Undyne's failure to capture the human on multiple occasions due to Monster Kid bothering her or she uses random tactics such as letting a bridge's fall kill the human and not check to see if they died herself, and Napstablook showing up out of nowhere to save the human during Mad Dummy), Statistics Amplification (The Human used determination to continuously amp themselves to tank hits from Asriel's attacks and keep up with him in speed), Regeneration Negation (Up to "Low-Godly to Mid-Godly"; Genocide run human was capable of permanently killing Undyne the Undying), Acausality (Unfixed Causality; One with very strong determination can remember resets), Power Nullification (Passive; Anyone with higher determination then another can override their powers. The difference in DT allows them to nullify more abilities, though the standard is negating all time based abilities).

Resistance to Memory Manipulation, Reality Warping, & Time Manipulation (Unaffected by standard resets)

Reality Warping (Warps all of reality back to an original state), Memory Manipulation & Resistance Bypassing (Erases the memories of every character, even those who originally resisted it), Time Manipulation (Resets the world), Information Manipulation (Total), Data Manipulation, & Conceptual Manipulation (A true reset thoroughly erases all information in one’s file, resetting it back to zero. Chara with the true reset set a permanent flag that cannot be removed without non-canon hacking), Possible Acausality Negation (Causality Immunity; Annoying Dog was seemingly affected by the true reset itself too as he repeated the process of re-absorbing the legendary artifact)

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Equipment

ConsumablesEquippable ItemsMiscellaneous

Item	Description	Effects	Location and Cost
Bandage	It has already been used several times.	10 HP	Starting item, Free. Becomes consumable once a different piece of Armor is equipped. One of a kind.
Monster Candy	Has a distinct, non-licorice flavor.	10 HP	The Ruins, Free. Four of a kind. Three in Hard Mode.
Spider Donut	A donut made with Spider Cider in the batter.	12 HP	Spider Bake Sale in the Ruins, 7G. Spider Bake Sale in Hotland, 9999G.
Spider Cider	Made with whole spiders, not just the juice.	24 HP	Spider Bake Sale in the Ruins, 18G. Spider Bake Sale in Hotland, 9999G.
Butterscotch Pie	Butterscotch-cinnamon pie, one slice.	ALL HP	Toriel's Home, Free. One of a kind. Not in Hard Mode.
Snail Pie	Heals Some HP. An acquired taste.	Restores HP up to one less than maximum HP	Toriel's Home, Free. One of a kind. Hard Mode only.
Snowman Piece	Please take this to the ends of the earth.	45 HP	Snowman in Snowdin Forest, Free. Two of a kind; the second one replaces the first if lost. Three in the Genocide Route.
Nice Cream	Instead of a joke, the wrapper says something nice.	15 HP	Cart in Snowdin Forest, 15G. Cart in Waterfall, 25G (15G while carrying an umbrella). Free (in exchange for three Punch Cards). Cart in Hotland, 12G (if Royal Guards were killed). Unavailable in the Genocide Route or after exhausting the Snowdin kill counter in the Neutral Route.
Bisicle	It's a two-pronged popsicle, so you can eat it twice.	11 HP	Snowdin Shopkeeper 15G (initial) 30G (after Papyrus) 45G (after Undyne) 70G (after completing CORE) Free (Genocide Route)
Unisicle	It's a SINGLE-pronged popsicle. Wait, that's just normal...	11 HP	Bisicle Consumption, Free.
Cinnamon Bunny	A cinnamon roll in the shape of a bunny.	22 HP	Snowdin Shopkeeper, 25G. Free in the Genocide Route.
Astronaut Food	For feeding a pet astronaut.	21 HP	Cooler in the Garbage Dump, Free. Two of a kind.
Crab Apple	An aquatic fruit that resembles a crustacean.	18 HP	Gerson, 25G.
Sea Tea	Made from glowing marsh water. Increases SPEED for one battle.	10 HP	Gerson, 18G.
Abandoned Quiche	A psychologically damaged spinach egg pie.	34 HP	Bridge Seeds Puzzle in Waterfall, Free. One of a kind.
Temmie Flakes	It's just torn up pieces of colored construction paper.	2 HP	Tem Shop 1G (ON SALE,) 3G (Normal) 20G (expensiv) 1000G (premiem, Genocide Route exclusive)
Dog Salad	Recovers HP (Hit Poodles)	2/10/30/ALL HP (random chance)	Chance of spawning when Dog Residue is used, Free.
Instant Noodles	Comes with everything you need for a quick meal!	4 HP (in battle) 15 HP (Overworld) 90 HP (Serious Mode)	Refrigerator in the Lab, Free. One of a kind.
Hot Dog...?	The "meat" is made of something called a "water sausage."	20 HP	Hot Dog Stand in Hotland, 30G. Unavailable if Papyrus is killed.
Hot Cat	Like a hot dog, but with little cat ears on the end.	21 HP	Hot Dog Stand in Hotland, 30G. One of a kind. Unavailable if Papyrus is killed.
Junk Food	Food that was probably once thrown away.	17 HP	Bratty and Catty, 25G. Decreases ratings when in the fight with Mettaton. Free in the Genocide Route.
Hush Puppy	This wonderful spell will stop a dog from casting magic.	65 HP	MTT Resort, sliding a Hot Dog under the fourth door. One of a kind. Unavailable if Papyrus is killed.
Starfait	A sweet treat made of sparkling stars.	14 HP	MTT-Brand Burger Emporium, 60G Boosts ratings when in the fight with Mettaton.
Glamburger	A hamburger made of edible glitter and sequins.	27 HP	MTT-Brand Burger Emporium, 120G Trash can in the CORE, Free (one of a kind). Boosts ratings when in the fight with Mettaton.
Legendary Hero	Sandwich shaped like a sword. Increases ATTACK when eaten.	40 HP	MTT-Brand Burger Emporium, 300G Boosts ratings when in the fight with Mettaton.
Steak in the Shape of Mettaton's Face	Huge steak in the shape of Mettaton's face. You don't feel like it's made of real meat...	60 HP	MTT-Brand Burger Emporium, 500G Boosts ratings when in the fight with Mettaton. One of a kind.
Popato Chisps	Regular old popato chisps.	13 HP	Vending Machine in the True Lab, 25G.
Bad Memory	?????	-1 HP ALL HP (if HP is 3 or lower)	Fight against the Memoryheads, Free.
Last Dream	The goal of "Determination."	12 HP (Description) 17 HP (Use)	Fight against Asriel Dreemurr, Free. Fills empty inventory slots.

Weapons

Item	Description	Effects	Pattern	Location and Cost
Stick	Its bark is worse than its bite.	0ATK	Single hit	Starting Item, Free. One of a kind. Cannot be re-equipped.
Toy Knife	Made of plastic. A rarity nowadays.	3ATK	Single hit	Balcony of the Ruins, Free. One of a kind.
Tough Glove	A worn pink leather glove. For five-fingered folk.	5ATK	Single hit, then mash	Dimensional Box, Free. Snowdin Shopkeeper, 50G. Free in the Genocide Route.
Ballet Shoes	These used shoes make you feel incredibly dangerous.	7ATK	3 hits	Tall Grass in Waterfall, Free. One of a kind.
Torn Notebook	Contains illegible scrawls. Increases INV by 6.	2ATK	2 hits	Gerson, 55G.
Burnt Pan	Damage is rather consistent. Consumable items heal four more HP.	10ATK	4 hits	Isolated area in Hotland, Free. One of a kind.
Empty Gun	An antique revolver. It has no ammo. Must be used precisely, or damage will be low.	12ATK	4 hits, very fast	Bratty and Catty, 350G. Free in the Genocide Route. One of a kind.
Worn Dagger	Perfect for cutting plants and vines.	15ATK	Single hit	Asgore's Home, Free. One of a kind. Replaces the Real Knife in the True Pacifist Route and Neutral Route.
Real Knife	Here we are!	99ATK	Single hit	Asgore's Home, Free. One of a kind. Replaces the Worn Dagger in the Genocide Route.

Armors

Item	Description	Effects	Location and Cost
Bandage	It has already been used several times.	0DEF	Starting Item, Free. One of a kind. Cannot be re-equipped. Becomes consumable once unequipped.
Faded Ribbon	If you're cuter, monsters won't hit you as hard.	3DEF	One Switch Puzzle in the Ruins, Free. One of a kind.
Manly Bandanna	It has seen some wear. It has abs drawn on it.	7DEF	Snowdin Shopkeeper, 50G. Free in the Genocide Route.
Old Tutu	Finally, a protective piece of armor.	10DEF	Behind a waterfall in Waterfall, Free. One of a kind.
Cloudy Glasses	Glasses marred with wear. Increases INV by 9.	5DEF	Gerson, 35G.
Temmie Armor	The things you can do with a college education! Raises ATTACK when worn. Recovers HP every other turn. INV up slightly.	20DEF	Tem Shop (after buying scholarship), 9999-750G. Price is lowered after every death. Cannot be bought in the Genocide Route.
Stained Apron	Heals 1 HP every other turn.	11DEF	Isolated area in Hotland, Free. One of a kind. Cannot be obtained in the Genocide Route.
Cowboy Hat	This battle-worn hat makes you want to grow a beard. It also raises ATTACK by 5.	12DEF	Bratty and Catty, 350G. Free in the Genocide Route. One of a kind.
Heart Locket	It says "Best Friends Forever."	15DEF	Asgore's Home, Free. One of a kind. Replaces The Locket in the True Pacifist Route and Neutral Route.
The Locket	You can feel it beating.	99DEF	Asgore's Home, Free. One of a kind. Replaces the Heart Locket in the Genocide Route.

Item	Description	Effects	Location and Cost
Punch Card	Use to make punching attacks stronger in one battle. Use outside of battle to look at the card.	Increase ATK when in battle. Three can be traded in for a free Nice Cream.	Box next to Cart in Waterfall, 25G (15G if the protagonist was carrying an umbrella when Nice Cream was bought). Unavailable on the Genocide Route or after exhausting the Snowdin Forest kill counter on the Neutral Route.
The Annoying Dog	A little white dog. It's fast asleep...	Absorbs the legendary artifact when used or dropped. Also gives the protagonist Dog Residue.	Legendary Artifact Room in Waterfall, Free. One of a kind.
Dog Residue	The Dog Residue has different random descriptions, such as being a jigsaw puzzle left unfinished by the Annoying Dog as well as other oddities.	Fills the inventory with more Dog Residue, with a possibility of giving Dog Salad.	Legendary Artifact Room in Waterfall, Free.
Mystery Key	It is too bent to fit on your keychain.	Unlocks the front door of the house next to Napstablook's.	Bratty and Catty, 600G. Free on the Genocide Route. One of a kind
Silver Key	(not an inventory item)	Unlocks Sans's workshop.	Sans's room, Free. Only available on a no EXP earned Neutral Route after obtaining the key to Sans's room in the Last Corridor.
Undyne's Letter	Letter written for Dr. Alphys.	Used to regain access to Dr. Alphys's lab.	Undyne in Snowdin (or Waterfall if befriended after defeating Asgore) in the True Pacifist Route, Free. One of a kind.
Undyne's Letter EX	It has DON'T DROP IT written on it.	Used to regain access to Dr. Alphys's lab.	Undyne in Snowdin if the protagonist drops Undyne's Letter, Free. One of a kind.
0	If you are reading this, I messed up somehow.	Dropping this item or viewing it in battle crashes the game	Unobtainable without glitches.

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Notable Techniques

FIGHT: The Human is prompted to pick an enemy to attack. The Human can attack one enemy each turn.

ACT: The Human is prompted to select an enemy, and is then given one or more ACT options which are specific to that enemy.

ITEM: Using consumable items regains health. Some consumable items are capable of increasing stats. Using equipment items other than the Bandage or Stick equips them.

MERCY: Sparing means that Frisk does not want to fight. The Human is encouraged on multiple occasions on their journey to show mercy to the opponents they fight.

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Other

Standard Tactics: The Human's tactics depends on the route Frisk is on. If neutral, The Human's tactic normally will be to attack if necessary and use the ACT command to find out things about their enemy and find potential alternatives to the fight. If the pacifist route the human will never use the FIGHT command, unless absolutely necessary, going for ACT and MERCY tactics. Genocide route the human will go striaght for the FIGHT command, always attempting to slaughter all the opponents in their way. Even with these routes in mind, the human is still technically a wild card as they could switch at any moment, such as they could be on their pacifist route and suddenly opt to murder enemies and vice versa with the genocide route.

Weaknesses: Can be forced into soul combat, otherwise nothing notable.

Gallery

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  The Human's eye being stained by Sans' telescope prank.

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  The Human covered in fruit and vegetables, during the hangout with Undyne.

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  The Human hugging Asriel at the end of a True Pacifist Route.

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  The Human Little Buddy sold on Fangamer.

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  The Human Nendoroid sold on Fangamer.

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  The Human's official tarot card, renamed to "the human" in the official merchandise page, as Major Arcana 0, "The Fool."

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  The Humanlatching onto Doggo's back on his tarot card.

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  The Human sitting with the Small Bird roosting on their head.

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  The Human as seen in the reflection on Sans's tarot card.

Trivia

Spoilers!

The word "frisk" can mean several things: To "frisk" means to skip or leap playfully, or to pat down on someone, looking for a hidden item. "Frisk" is the Swedish and Norwegian word for "healthy," and the Danish word for "fresh." "Frisky" means "playful and full of energy." Naming the fallen human "Frisk" initiates Hard Mode. When just tapping right, Frisk does not put their foot up. This is not true for the other directions. When holding up and down on the north wall of any room, Frisk will appear to flash quickly between their two north and south sprites. This is informally called as the Frisk dance by players such as Merg. When in the room overlooking the castle with the Monster Kid and going either left or right while holding up and down, Frisk walks twice as fast. Frisk appears to be left-handed. Evidence includes: Holding the umbrella and glass of water using their left hand. The slicing attack animation curving to the right, implying that force was carried from the left to the right during the attack. Most fatality battle sprites display steep slashes from top left to bottom right, a pattern not commonly made by someone who is right-handed. While Frisk is allergic to Temmie, this is not true of the other furry residents of the Underground. When hugging Asriel, other purple stripes appear on Frisk's shirt sleeves. At the end of the True Pacifist Route, Napstablook was the only monster who did not know Frisk's name until they mention it. Frisk is the last of the eight humans to fall into the Underground after traveling to Mount Ebott. Out of all the humans that fell, Frisk is the only human to survive the adventure in any ending. Frisk is only alluded to in Flowey's UNDERTALE Alarm Clock App dialogue, where one of his talksprites mimics their blank expression. Toby Fox was asked two interview questions regarding Frisk. One was whether Frisk's pronoun is a design choice, and in regards to Frisk's parents not being mentioned in-game. However, Toby responded with "Skip" to both questions, as he was offered to skip any questions he did not want to answer. An earlier version of Frisk's sprite. In a joke thread on Starmen.net, Toby Fox posted early files from Undertale saying they were from an EarthBound hack called "UnderBound 2." It was said that Frisk was a young androgynous child who was the step-cousin of "Squeezo" from the non-existent EarthBound hack, "UnderBound." Frisk was also shown to have black outlines with black hair and shoes compared to the lighter brown seen in the final version of the game. The artbook reveals this was changed because the sprite did not show up on the game's dark backgrounds that well. It was also jokingly mentioned that Frisk's love interest was a female Cuban cigar, concerning a question of whether the "love" in the game was romantic or like love of a fine cigar. Frisk's striped clothing is most likely a reference to the "Mother" franchise, which was Toby Fox's major inspiration for Undertale. The main protagonists of each installment also wore striped clothing.

Battle Records

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