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For the song named after this character, see sans..

i'm sans.
sans the skeleton.

Sans introducing himself.

Sans (/sænz/[2]) is the older[1] brother of Papyrus and a major character in Undertale. He first appears in Snowdin Forest after the protagonist exits the Ruins. Sans is the deuteragonist of the Neutral and True Pacifist routes, in which he keeps an eye on the protagonist throughout the game. He is also the final boss of the Genocide Route.

Profile

Appearance

Sans appears as a relatively short and paunchy skeleton, with mitten-like hands. Sans is always seen with a wide, toothy-grin on his face. Sans wears a blue hoodie, a white t-shirt underneath, black shorts with white stripes, and a pair of slippers. He has white dots in black eye sockets that disappear when he is serious or angered. When Sans uses telekinesis, his left eye flashes light blue and yellow (the colors for patience and justice) while his right pupil vanishes.

Personality

Sans is lazy, often sleeping on the job and taking breaks. His laziness is a combination of fatalism and apathy, as he is aware of timeline resets. Conversely, he suggests that this knowledge could be "a poor excuse for being lazy."[3]

Waterfall location Sans telescope

Sans's fake telescope.

He enjoys being mischievous. Sans primarily acts this way towards those he is in good terms with. His antics range from an assortment of illogical, juvenile, and slightly inconvenient pranks. Examples include Sans "selling fried snow," using whoopee cushions, sharing an unscrewed ketchup bottle, and eye paint on a telescope. He is not above utilizing his teleportation or other magic for practical jokes either.[4] Sans is also fond of making the occasional low-brow puns. He enjoys making others laugh in general, as he also performs at the MTT Resort as a comedian.[5][6]

Despite Sans being apathetic towards his own life, he is considerate to those he cares for. For example, Sans is a regular at Grillby's, and the monsters and Royal Guard dogs treat him kindly. Sans has informed Big Mouth about "all kinds of incredible foods," yet Big Mouth comments that "he always orders the worst burger off the menu." Although Sans hates making promises, he respects Toriel's request to watch out for any humans.[7] Even if the protagonist killed people that were close to him, Sans refrains from broaching the topic until the Last Corridor. In a Neutral Route ending where Papyrus or Toriel is alive, Sans omits the protagonist's slaughter to either of them.

He is also observant; Sans reads the protagonist's expressions and can often tell when they have already done certain tasks, as when SAVING and reloading. Though Sans is usually agreeable, he can become eerily serious to emphasize a subject. Regardless of the human being partially or wholly merciful, Sans tells them that if "the old lady" (confirmed in the True Pacifist Route to be Toriel) had not made him promise to protect them, "(they'd) be dead where (they) stand." During the Genocide Route, he does everything in his power to kill the protagonist, even faking mercy.

Sans may have a scientific background. Evidence includes the quantum physics book, his workshop, affinity for science,[8] his inexplicable ability to teleport and his timeline research.[9]

Sans has implied he once longed and searched for a life that he cannot go back to as he "gave up trying to go back a long time ago". As a Lost Soul, he tells the protagonist that "you'll never see 'em again." Although what Sans is trying to return to is vague.

Main Story

Neutral Route

heheh... the old whopee cushion in the hand trick.
it's ALWAYS funny.

Sans

Sans screenshot stalking

Sans's first appearance in Snowdin Forest.

Sans introduces himself to the protagonist in Snowdin Forest after he initially appears as a silhouette. He explains that he has no interest in capturing humans, but that his brother, Papyrus, does.[10] Then, Sans hides the protagonist behind a lamp whose shape is very conveniently identical to the protagonist's. Papyrus rushes onscreen, and the brothers discuss Sans's laziness and the importance of puzzle upkeep.[11][12] Sans appears multiple times throughout Snowdin Forest, observing and commentating on the puzzles but not engaging in any japery, except for the word search.

Before Papyrus's battle, Sans is absent in Snowdin Town. He appears briefly to play trombone during the date/hangout with Papyrus but does not appear again until the Last Corridor if the protagonist kills Papyrus.

Premoniton soundtrack

A spotlight falls on the protagonist and Sans as "Premonition" plays.

After entering Waterfall, Sans is found manning a sentry station and asks the protagonist if they want to take a break with him. If the protagonist agrees, he takes them to Grillby's via a "shortcut." The patrons warmly greet Sans, and he proceeds to treat the protagonist to a burger or fries. After some dialogue, a spotlight falls on him and the protagonist and time appears to stop as Sans tells the protagonist that a flower has been talking to Papyrus.[13] Sans believes that someone is tricking Papyrus with an Echo Flower when the flower in question is Flowey.[14] Sans can be seen again in Waterfall and pranks the protagonist with a red-eye telescope. Later, if Papyrus was killed, "a hooded figure" watches Shyren's battle. However, if Papyrus was spared, Sans sells concert tickets made of toilet paper, implying the other figure was Sans as well.

Sans screenshot head dogs

Sans telling the protagonist the limit of head dogs.

The protagonist passes him sleeping at a sentry post in Hotland if the protagonist flees from Undyne. Undyne notices him sleeping and berates him mid-chase. Sans does not appear in this spot if Undyne was killed, even if Papyrus was spared.

Later, Sans sells Hot Dogs in Hotland for 30G. If the protagonist attempts to buy a Hot Dog when their inventory is full, he stacks a maximum of 30 Hot Dogs on their head for free.[15]

It's Raining Somewhere Else soundtrack

Sans and the protagonist at the MTT Resort's restaurant as "It's Raining Somewhere Else" plays.

Further on, Sans waits outside of the MTT Resort and asks the protagonist if they want to grab a bite to eat. He escorts the protagonist inside via "shortcut" and talks about a woman he has befriended that shares his affinity for puns.[16][17] He tells the protagonist that this woman (implied, and later confirmed to be Toriel) made him promise to protect any human that left the Ruins and that, if she had not said anything, the protagonist would be "dead where [they] stand." He dismisses this as a joke immediately and says that he has done a great job protecting the protagonist. If the protagonist has not died before, Sans takes credit for their success. If the protagonist has died, Sans questions the validity of his statement.[18][19] Before leaving, he tells the protagonist to take care of themself because someone really cares about them.

Judgement

So you finally made it.
The end of your journey is at hand.
In a few moments, you will meet the king.
Together...
You will determine the future of this world.

Sans's introduction in the Last Corridor.

The protagonist encounters Sans for the last time in the Last Corridor. He explains that EXP and LOVE are acronyms - "EXecution Points" and "Level Of ViolencE"[20] and judges the protagonist for their current EXP.[21]

If the protagonist gained no EXP, Sans skips his judgment, instead praising the protagonist for embracing compassion and actively choosing to be merciful to the monsters throughout their journey. He reinforces the idea that the protagonist's actions shall decide the fate of the world in one of two ways: the protagonist lets Asgore take their SOUL and allow the monsters to break the Barrier, or they take Asgore's SOUL to escape the Barrier themself.[22] Impressed by their feat, Sans concludes that the protagonist now has enough determination and believes that they can do the right thing before leaving.[23]

Papyrus and Sans's House location workshop

Sans's workshop entrance is located behind his house.

If the protagonist has heard his speech before, Sans notices their bored expression and offers a secret codeword that he uses to prove that they are a time traveler.[24] After the protagonist loads their SAVE a few times, Sans's suspicions are affirmed and he gives them a key to his room.[25] Inside Sans's room is a key to his workshop.

If the protagonist gained EXP, Sans allows them a moment to think about their actions. He then emphasizes the importance of integrity and, if Papyrus is alive, concludes that whatever happens next is up to the protagonist.[26] If the protagonist killed Papyrus, Sans expresses his suspicion that they have some special power. He then asks if the protagonist thinks it is their responsibility to do the right thing.[27] Regardless of their answer, Sans reminds the protagonist of his fallen brother and leaves.

If the protagonist returns to the Last Corridor after loading a SAVE, Sans judges the protagonist on their earned LV. Subsequent attempts to talk to Sans after judgment prompts him to tell the protagonist to "consider [their] session over."

Sans's LV Judgment
Sans's judgment occurs after he re-explains LOVE and EXP, and after he tells the protagonist to look inside themself.
(Before Judgment)
  • huh? you look bored.
  • i get the feeling you aren't gonna learn anything from this.
  • well, guess I gotta judge you then.
(Failsafe text; can occur if the protagonist is at LV 1 with EXP but has previously been judged at a higher level.)
  • come on. really?
(One LV higher than the previous judgment, or LV 1 with EXP if it is their first.)
  • ... huh?
  • what's with that look in your eye?
  • did you go through and kill someone...
  • just to see what i'd say about it?
  • wow.
  • you're a pretty gross person, huh?
(LV 2)
  • lv2... seems like you messed up the slightest amount.
  • welp. that's pretty sad.
  • you probably weren't even aware of what you were doing...
  • and when you learned, it was too late.
  • nah, just kidding.
  • who gets to lv2 on accident? get outta here.
(LV 3)
  • lv3...
  • 3's just an ok number, i guess.
  • i'll give you a C+.
  • you can do better, right?
(LV 4 – LV 9)
  • hmmm... over lv3, huh.
  • you killed some people on purpose, didn't you?
  • that's probably bad.
  • though, maybe some of it was in self-defense...
  • i don't know. help me out here.
  • i wasn't watching.
  • anyways, don't do that.
(LV 10 – LV 14)
  • hmmm... over lv9, huh.
  • that's over halfway to lv20, the maximum.
  • but don't think that means you're still 50-percent good.
  • 50-percent, 20-percent.
  • those are both still failing grades.
  • besides. chances are...
  • i've already tried to steer you in the right direction.
  • so what can i say?
  • what can i say that will change the mind of a being like you...?
(LV 15 and Above)
  • hmmm... over lv14, huh.
  • well, hmmm... judgment-wise...
  • you're a pretty bad person.
  • you wander around, looking for people...
  • killing them to take their money.
  • that's just plain messed up.
  • and what's worse, is that as bad as you are...
  • you aren't anywhere near as bad as you could be.
  • you pretty much suck at being evil.
  • honestly, it's super embarrassing.
  • but maybe you'd be better...
  • at not killing anyone?
  • crazy idea, huh?
  • let me know how that one goes.

Endings

An Ending soundtrack

After the protagonist defeats Photoshop Flowey, Sans calls and informs them of the events that transpired after their departure. The content of this phone call varies depending on the protagonist's actions.

True Pacifist Route

huh? you haven't beaten this guy yet?
come on, this weirdo's got nothin' on you.

Sans

Flowey screenshot captured monsters

Sans and other main characters trapped by Flowey's vines.

Sans is absent from the Last Corridor in the True Pacifist Route. However, he does appear during the pre-Asriel cutscene and meets Toriel face-to-face for the first time. Flowey binds Sans and the protagonist's other friends, then eventually absorbs their SOULs after they defend the protagonist from Flowey.

During the battle against Asriel, Sans appears as one of the Lost Souls alongside Papyrus.

Epilogue

After defeating Asriel, Sans stands alongside the other main characters. If the protagonist talks to him, he says a certain remark depending on what, if anything, the protagonist said to Toriel in calls at the beginning of the game.[28] Sans also uses Toriel's phone to text for her a few times because Toriel's thumbs are too big for the phone buttons. When the protagonist is ready to leave, Sans exits the Underground and heads to the Surface along with the other monsters.

When Papyrus runs off to introduce himself to the humans, Sans says that someone must keep him away from trouble and runs off in the opposite direction, presumably to use a "shortcut."

Sans overworld tricycle

In the credits, Sans rides a tricycle on a highway and overtakes Papyrus's sports car, much to his brother's annoyance.

Genocide Route

if you keep going the way you are now...
...
you're gonna have a bad time.

Sans's warning to the protagonist in a Genocide Route

Sans screenshot bad time

Sans disappears in front of the protagonist.

Sans stalks and introduces himself to the protagonist as usual but requests that they continue pretending to be a human.[29] He does not comment on the protagonist turning around before he asks them to. Sans goes along with Papyrus's japery and does not appear as an NPC as he does on other routes. After the protagonist crosses the bridge before Snowdin Town, Sans warns them not to fight his brother or else they will "have a bad time." He then disappears and is absent until the Last Corridor.

If the protagonist aborts the Genocide Route by sparing Papyrus, Sans reappears at the Waterfall sentry station and expresses his respect for their mercy to Papyrus.[30] He continues to appear as he does on the Neutral Route but does not take the protagonist to Grillby's since Snowdin has been evacuated.

Sans screenshot before battle

Sans's Last Corridor speech in the Genocide Route.

After killing Papyrus, the protagonist continues to kill all the monsters in the Underground. Sans watches them secretly without confronting them directly, hoping they would heed his friendly advice and stop. Eventually, he decides to stop them himself no matter what.

Sans confronts the protagonist in the Last Corridor but does not judge, instead claiming they must have been busy. He starts off by paraphrasing one of Papyrus' statements. Instead of answering, the protagonist takes a step forward.

Next Sans laughs and asks "do you wanna have a bad time?", threatening them with force should they proceed. When the protagonist dismisses his warnings and continue to advance, he fights them.

Before the battle begins, Sans apologizes to the late Toriel for breaking his promise to her.

Sans repeatedly dodges the protagonist's attempts to hit him and retaliates with his relentless attacks, doing his best to stop them. When he approaches exhaustion, he decides to stall forever by doing nothing, and refuses to let the protagonist have their turn, hoping they will eventually quit of boredom. Sans however falls asleep, giving the protagonist a window of opportunity without his interference. When they manage to attack again, Sans dodges once more, but fails to avoid the second, and takes a whopping 9999999 damage.

Recognizing his failure, Sans makes one desperate attempt to deter the protagonist, and slowly walks out of the screen while joking that he is going to Grillby's. He then speaks to his dead brother, asking him if he wants anything, and disintegrates shortly after.

For further information, see Sans/In Battle.

After defeating Sans, the protagonist's EXP is set to 99999, and their LV reaches 20. Sans will make certain remarks if he notices the protagonist has defeated him before and is fighting him again by resetting or through loading a SAVE.[31]

Sans does not count as a kill in the Stats menu.

In Battle

For an in-battle description, see Sans/In Battle.

Relationships

The Protagonist

take care of yourself, kid.
'cause someone really cares about you.

Sans after his rendezvous at the MTT Resort

Sans's attitude towards the protagonist depends on their actions, though he usually enjoys pranking them and occasionally hanging out with them unless they kill Papyrus. Near the end of a Neutral or Genocide Route, he judges them on their EXP. At the end of the True Pacifist Route, Sans considers them a good friend. If the protagonist killed Papyrus, Sans does not bother to encounter them until he judges them in the Last Corridor, where he reminds them that they killed his brother.

Sans initially considers the protagonist to be an "anomaly"; his intentions of befriending them were in hopes that they would stop resetting the timeline.[32] However, he also says that the protagonist did not die after their initial encounter because of his promise to Toriel. This may imply he would have killed the protagonist, he protected them from life-threatening harm after their first encounter, or he was simply joking.

His awareness of time travel makes him scrupulous, and he recognizes when the protagonist is behaving unusually. Sans reads the protagonist's expression and determines if they have experienced events before and are repeating them.[33] He also knows how much EXP the protagonist has and comments on it when judging them.

If the protagonist pursues pacifism, Sans begins to lose his previous apathy and comes to genuinely support the protagonist in their mission, as indicated in his MTT Resort date[34] and Last Corridor judgement.[35]

Papyrus

here, i'll give you some advice about fighting my brother.
don't. capiche?

Sans if the protagonist is about to fight Papyrus after having previously killed him

Sans deeply cares for and admires his brother. He keeps up with Papyrus's temper tantrums and he knows how to deal with Papyrus's childish outbursts. Sans also reads him bedtime stories[36] and gives him presents under the identity of Santa.[37] Nonetheless, Sans likes to mess with Papyrus, sending him bad puns on the UnderNet.[38] He also leaves a dirty sock in their living room for Papyrus to fuss over.

Sans also worries about others hurting Papyrus or taking advantage of him. In the Papyrus ending of the Neutral Route, Papyrus states that Sans is handling the paperwork and puts in unusual amounts of effort compared to his usual lethargy. To avoid bothering Papyrus with other characters' deaths, Sans lies about them going on a vacation.[39] He also conceals this to Papyrus in other Neutral Route endings where the latter is alive.

Toriel

oh hey... i recognize your voice, too.

Sans after meeting Toriel in person for the first time.

Toriel and Sans share a love of bad jokes and are friends even though they never see each other face-to-face until the epilogue, the Family Ending, or the Exiled Queen Ending. Before the protagonist's arrival, Sans and Toriel shared jokes through the door to the Ruins.

In the Exiled Queen Ending, Sans becomes Toriel's roommate if Papyrus has been killed. In this route, he does not inform Toriel of the protagonist's slaughter to uphold his promise. If Papyrus is alive, the brothers visit Toriel often, play board games together, and sometimes convince Toriel to leave the Ruins.

As mentioned before, while not being one to make promises, Sans complies with Toriel's request to watch over and protect any human that exits the Ruins. Near the end of the Genocide Route, he indirectly apologizes to her, as he is forced to break his promise to stop the protagonist.[40]

Sans and Toriel are only seen together on screen in the True Pacifist Ending. If the protagonist decides to go back through the Underground before going to the surface, Sans sends them texts for Toriel since her thumbs are too big for the buttons on the phone. It is implied that they soon fight for control of the phone when they begin to send embarrassing texts of each other.

Alphys

It is implied Sans is friends with Alphys, as he sends her dog food to help her feed Endogeny.[41] However, he does not inform anyone of his actions. Their friendship is emphasized in the True Pacifist Route epilogue, where Alphys preemptively responds with a joke before Sans does.[42]

It is also noteworthy that if Papyrus is called just before entering the Lab, Sans appears in the call and suggests that there may be dogs inside the lab.[43] This hints that he may know about the True Lab since Endogeny, an Amalgamate composed of several dogs, can be found there. According to Alphys in an aborted Genocide Route, she is forced to rule the Underground and Sans helps her lead; she calls Sans "a good guy".[44]

W. D. Gaster

A few things hint at a connection between Sans and W. D. Gaster. Evidence includes the blueprints and veiled machine found in his workshop, the sprites used for his skull-like laser guns (labeled gasterblaster in the game files), and his unexplained scientific research on the "anomaly" and timelines. Sans and Papyrus are named after a font, which W. D. Gaster is assumed to also be, so it is believed they are related.

Dialogue

  • hey buddy, what's up? wanna buy a hot dog?
  • it's only 30G.
  • [Yes]
    • thanks, kid. here's your 'dog.
    • yeah. 'dog. apostrophe-dog. it's short for hot-dog.
      • another h'dog? here you go...
      • whoops, i'm actually out of hot dogs.
      • here, you can have a hot cat instead.
        • another dog, coming right up...
        • ... you really like hot animals, don't you?
        • hey, i'm not judging.
        • i'd be out of a job without folks like you.
          • cool. here's that ''dog.
          • apostrophe-apostrophe dog.
          • it's short for apostrophe-dog.
          • which is, in turn, short for...
            • another one? okay.
            • careful. if you eat too many hot dogs...
            • you'll probably get huge like me.
            • huge as in super-popular, i mean.
            • i'm practically a hot-dog tycoon now.
              • thanks, kid. here's your hot dog.
    • [Full Inventory]
      • you're holding too much. ... guess i'll just put it on your head. [Head Dogs #1]
      • [Head Dogs #2]
        • here's another hot dog.
        • it's on the house. well, no. it's on you.
      • here. have fun. [Head Dogs #3-30]
      • [Head Dogs #31]
        • i'll be 'frank' with you.
        • as much as i like putting hot dogs on your head...
        • thirty is just an excessive number.
        • twenty-nine, now that's fine, but thirty...
        • does it look like my arms can reach that high?
      • sorry, thirty is the limit on head-dogs. [Head Dogs #32+]
    • [Not enough money]
      • whoops, you don't have enough cash.
      • you should get a job. i've heard being a sentry pays well.
  • yeah, you've gotta save your money for college and spiders. [No]

Gallery

Trivia

  • Sans's name alludes to the typeface in which he speaks in: Comic Sans. This is a reference to Helvetica, a webcomic about a skeleton named after a font.
    • In Japanese phonetics, Sans's name is homophonous with the name of the Sanzu River, a boundary between death and the afterlife in Buddhist lore which, like Sans, judges all who cross it for their deeds. The Sanzu River is also a recurring locale in the Touhou series, from which Toby drew inspiration for Undertale's bullet hell battles.
  • If the player attempts to name the fallen human "Sans," the game responds with "nope." and prevents the name from being used.
Sans overworld stool chup

Sans drinking ketchup.

  • Sans's text sound originates from a small clip of SpongeBob SquarePants from the S2 episode 'Something Smells', where Patrick Star says "Maybe it's the way you're dressed".[45]
  • Sans appears to be left-handed. Evidence includes:
    • Greeting the protagonist with a handshake using his left hand.
    • Holding and drinking a ketchup bottle with his left hand while dining at Grillby's.
    • Steering a tricycle using his left hand in the True Pacifist Credits.
    • Manipulating gravity with his left hand in his battle.
  • Sans speaks in all lowercase, not even capitalizing names[46] or sentence starters, with a few exceptions.[47] This may be a representation of how lazy he is.
  • No other character displays Sans's understanding of the SAVE mechanic; despite not seeming to directly remember events, his knowledge of facial expressions related to time travel is unexplained.
  • In a deleted tweet, Toby Fox said that Papyrus would use the term "Aniki," a Japanese slang used for older brothers or superiors. There are a multitude of interpretations for this as it does not give a clear answer.[48] However, in the official Japanese translation released in 2017, Papyrus refers to Sans as "Nii-chan", a somewhat immature way of addressing one's older brother.
    • In Legends of Localization Book 3: UNDERTALE, it's stated that during the translation of Undertale to Japanese, rather than make a blind guess, the translator consulted with Toby for details. Thus, through the translation process, it was definitively revealed that Sans is the older brother and Papyrus is the younger brother.[49]
  • When the Fun Value is between 40 and 45, Sans calls the protagonist in Snowdin Forest to ask if their fridge is running.[50]
  • There was a glitch in version 1.0 in which Sans would walk up off the screen at Grillby's when he took the protagonist there. His dialogue still appeared normally.[51]
  • Sans's face sprite in his lines differs slightly from his battle sprite's face. When he speaks in the overworld, the top of his head is slightly larger and his mouth is less wide.
  • Sans's line "on days like these, kids like you... Should be burning in hell." could possibly be a reference to a line said by Captain Strong in EarthBound, which goes "At times like this, kids like you should be playing Nintendo games."
    • In addition, the first part of this quote is a direct reference to a quote of Asgore's on the Neutral Route.[52]
Sans overworld dangerous

spr_sans_dangerous_0

  • There are two unused overworld sprites of Sans in the game files, one showing him with his pupils (spr_sans_dangerous_0) and one showing him holding an ice cream.
    • In the 2023 summer edition of the Undertale / Deltarune newsletter, Toby Fox revealed that the ice cream sprite was meant for a special scene before Sans's judgement if he was reached fast enough, in which he would slowly eat the ice cream for a full minute accompanied by silly music.
Sans battle clenched fists
  • Sans also has an unused pose for his battle graphics, similar to his shrugging pose, but with clenched hands.
  • In the 5th Anniversary Alarm Clock text, Undyne was talking about a hockey game everyone had played against her. Once Sans scored a goal, he went over to Alphys and did a "finger-pointy arm-crossy dance," implied to be the Fortnite emote Dance Moves, more commonly known as the Default Dance.
  • Sans makes an appearance alongside Papyrus at the end of the Undertale Demo if the protagonist gained no EXP.
  • Sans makes cameo appearances and comments in Papyrus's Interviews for the Undertale /Deltarune Newsletter Archive.
  • Sans appears as a Mii costume for Mii Gunner in Super Smash Bros. Ultimate. The Gaster Blaster is used as the Mii Gunner's arm cannon. The Sans Mii Costume and MEGALOVANIA remix can be bought for $0.75.
    • The costume model is similar to the 3D model used for the "Sans Inaction Figure" sold on Fangamer, though it differs with the aforementioned Gaster Blaster and no visible neck. It resembles some of the Smash series's concept of the Smash fighters being trophy figures brought to life, often depicted as Amiibos in reality.
    • Sans is the first Mii Costume in Super Smash Bros. Ultimate to include a song with it.
    • The reveal trailer for this costume is in homage to Undertale, with themed items and brief moments of Sans dodging attacks from two Villagers to represent the humans, and a yellow Piranha Plant, implied to represent Flowey.
    • The Sans Mii Gunner outfit is referenced in Papyrus's 2nd Q&A, where Papyrus explains that Sans would not actually fight.
  • Sans appears as a guest character in Pop'n Music UniLab.
  • The sound of the Gaster Blasters consists of two sounds used by Asriel. First, the text sound when "ASRIEL DREEMURR" displays at the beginning of the battle (mus_sfx_a_gigatalk), and second, a beam sound used by Asriel's Chaos Buster and final attack (mus_sfx_rainbowbeam_1).
  • Despite most official appearances of Sans depicting him wearing pink slippers, such as his Mii costume in Super Smash Bros. Ultimate, Sans is never seen wearing pink slippers in either Undertale or Deltarune.
  • Sans is the only boss whose check stats are equivalent to his stats in the code.

See Also

References

  1. 1.0 1.1 Papyrus refers to Sans as his 兄ちゃん (nīchan, "big brother") in the official Japanese translation released in 2017.
  2. Super Smash Bros. Ultimate – Mr. Sakurai Presents "Banjo & Kazooie" - YouTube
  3. you can't understand how this feels.
    knowing that one day, without any warning...
    it's all going to be reset.
    look. i gave up trying to go back a long time ago.
    and getting to the surface doesn't really appeal anymore, either.
    cause even if we do...
    we'll just end up right back here, without any memory of it, right?
    to be blunt...
    it makes it kind of hard to give it my all.
    ... or is that just a poor excuse for being lazy...?
    hell if i know.
    - Sans
  4. WHY WERE YOU USING A TREADMILL IN THE DARK?
    IS SANS PRANKING YOU ACROSS TIME AND SPACE?
    I HATE IT WHEN HE DOES THAT!
    - Papyrus
  5. (It's a performance schedule.) (Comedians, dancers, Sans...) - Flavor text in the restaurant at the MTT Resort.
  6. fast food? from that hotland joint?
    sure, i like a good burg, but the restaurant one over's where it's at.
    got a nice atmosphere. done some comedy shows there on the stage.
    the king even came once. i said one pun and he just started going wild.
    - Sans, X-Box Dog Shrine dialogue
  7. i asked her what was up.
    then she told me something strange.
    "if a human ever comes through this door..."
    "... could you please, please promise something?"
    "watch over them, and protect them, will you not?"
    now, i hate making promises.
    and this woman, i don't even know her name.
    but...
    someone who sincerely likes bad jokes...
    has an integrity you can't say "no" to.
    - Sans
  8. HUH? MY BROTHER? OF COURSE HE HAS A TELESCOPE.
    SANS LOVES OUTER SPACEY SCI-FI STUFF.
    - Papyrus
  9. our reports showed a massive anomaly in the timespace continuum. - Sans
  10. im actually supposed to be on watch for humans right now.
    but... y'know...
    i dont really care about capturing anybody.
    now my brother, papyrus...
    he's a human-hunting FANATIC.
    - Sans
  11. IT'S BEEN EIGHT DAYS AND YOU STILL HAVEN'T...
    RECALIBRATED. YOUR. PUZZLES!
    - Papyrus
  12. YOU GET LAZIER AND LAZIER EVERY DAY!!! - Papyrus
  13. have you ever heard of a talking flower?
    so you know all about it. [Yes]
    i'll tell you, then. [No]
    the echo flower.
    they're all over the marsh.
    say something to them, and they'll repeat it over and over...
    what about it?
    well, papyrus told me something interesting the other day.
    sometimes, when no one else is around...
    a flower appears and whispers things to him.
    flattery... advice... encouragement...
    ... predictions.
    weird, huh?
    - Sans
  14. FLOWERS...?
    DO ANY OF THEM TALK!? SAY HI FOR ME!!!
    FLOWERS ARE OUR BEST FRIENDS!!
    - Papyrus, if the protagonist calls by the yellow flowers in the Garbage Dump.
  15. i'll be 'frank' with you.
    as much as i like putting hot dogs on your head...
    thirty is just an excessive number.
    twenty-nine, now that's fine, but thirty...
    does it look like my arms can reach that high?
    - Sans
  16. so I keep 'em coming, and she keeps laughing.
    she's the best audience i've ever had.
    - Sans
  17. we kept telling each other jokes for hours.
    eventually, i had to leave.
    papyrus gets kind of cranky without his bedtime story.
    but she told me to come by again, and so i did.
    then i did again. and again. it's a thing now.
    telling bad jokes through the door.
    it rules.
    - Sans
  18. haven't i done a great job protecting you?
    i mean, look at yourself.
    you haven't died a single time.
    - Sans
  19. hey, what's that look supposed to mean?
    am i wrong...?
    - Sans
  20. What's EXP?
    It's an acronym.
    It stands for "execution points."
    A way of quantifying the pain you have inflicted on others.
    When you kill someone, your EXP increases.
    When you have enough EXP, your LOVE increases.
    LOVE, too, is an acronym.
    It stands for "Level of Violence."
    A way of measuring someone's capacity to hurt.
    The more you kill, the easier it becomes to distance yourself.
    The more you distance yourself, the less you will hurt.
    The more easily you can bring yourself to hurt others.
    - Sans
  21. You will be judged for your every action.
    You will be judged for every EXP you've earned.
    - Sans
  22. your actions here...
    will determine the fate of the entire world.
    if you refuse to fight...
    asgore will take your soul and destroy humanity.
    but if you kill asgore and go home...
    monsters will remain trapped underground.
    what will you do?
    - Sans
  23. but you didn't get this far by giving up, did you?
    that's right.
    you have something called "determination."
    so as long as you hold on...
    so as long as you do what's in your heart...
    i believe you can do the right thing.
    - Sans
  24. so... i have a request for you.
    i kind of have a secret codeword that only i know.
    so i know if someone tells it to me...
    they'll have to be a time traveller.
    crazy, right?
    - Sans
  25. so, i guess you're qualified.
    here's the key to my room.
    it's time...
    you learned the truth.
    - Sans
  26. truthfully, it doesn't really matter what you said.
    all that's important is that you were honest with yourself.
    - Sans
  27. you act like you know what's gonna happen.
    like you've already experienced it all before.
    this is an odd thing to say, but...
    if you have some sort of special power...
    isn't it your responsibility to do the right thing?
    - Sans
  28. Toriel: Sans, did I tell you about the time Frisk flirted with me...?
    Toriel: And then asked to call me "mother?"
    Sans: oh boy.
    - Sans and Toriel in the epilogue.
  29. well, i'll be straight-forward with you.
    my brother'd really like to see a human...
    so, y'know, it'd really help me out...
    if you kept pretending to be one.
    - Sans
  30. hey, i really respect what you did back there. - Sans
  31. ...
    that expression that you're wearing...
    ...
    well, i won't grace it with a description.
    - Sans
  32. sounds strange, but before all this i was secretly hoping we could be friends.
    i always thought the anomaly was doing this cause they were unhappy.
    and when they got what they wanted, they would stop all this.
    and maybe all they needed was... i dunno.
    some good food, some bad laughs, some nice friends.
    - Sans
  33. that look on your face while i was talking...
    you've already heard my spiel, haven't you?
    i suspected something like this.
    you're always acting like you know what's going to happen.
    - Sans
  34. is what you have to do...
    really worth it?
    ...
    ah, forget it.
    i'm rootin' for ya, kid.
    - Sans
  35. so as long as you do what's in your heart...
    i believe you can do the right thing.
    alright.
    we're all counting on you, kid.
    good luck.
    - Sans
  36. eventually, i had to leave.
    papyrus gets kind of cranky without his bedtime story.
    - Sans
  37. That's strange. There was a present here for Papyrus...
    Now it's gone. Did someone steal it?
    - Gift Bear when Papyrus is killed
  38. A JEALOUS TROLL HAS BESIEGED MY ONLINE PERSONA.
    ALWAYS SENDING ME BAD PUNS IN A GOOFY FONT...
    - Papyrus
  39. IT'S STRANGE.
    ASGORE, ALPHYS, METTATON, AND UNDYNE WENT AWAY.
    SANS SAYS THEY WENT ON VACATION.
    I HOPE THEY'RE HAVING FUN!!!
    - Papyrus
  40. welp.
    sorry, old lady.
    this is why i never make promises.
    - Sans
  41. WAIT, THAT BAG OF DOG FOOD LOOKS FAMILIAR...
    I REMEMBER SEEING IT... IN SANS'S ROOM?
    YEAH! I ASKED HIM WHY HE HAD IT!
    HE TOLD ME HE WAS TRYING TO EAT HEALTHIER.
    - Calling Papyrus a second time on the Lab's first floor.
  42. Undyne: We're gonna be able to watch anime online!?
    Alphys: Of course, Undyne!
    Alphys: What do you think we've been fighting for all along?
    Sans: yeah, what do you...
    Sans: whoops.
    Alphys: Jinx! I knew you were gonna make that joke!
    Papyrus: WAIT, ALPHYS, I DIDN'T KNOW YOU KNEW SANS.
    Alphys: Well... I...
    Sans: doesn't everybody?
    - Undyne, Alphys, Sans and Papyrus, True Pacifist Route epilogue
  43. Papyrus: HMMM... A MYSTERIOUS SCIENCE HOUSE.
    Sans: the sign outside says "lab."
    Papyrus: LAB?
    Sans: like... laboratory.
    Papyrus: LABRADOR... Y?
    Papyrus: DOES THAT MEAN THERE ARE DOGS INSIDE?
    Sans: i mean.
    Sans: i wouldn't rule it out.
    - Phone call in Laboratory Entrance
  44. At least Sans is still here.
    He's...
    He's a good guy.
    And with him around...
    I...
    Sigh.
    - Alphys, Alphys Ending phone call
  45. https://soundcloud.com/undertale-recreated/undertale-bonus-track-sans-voice-recreation
  46. now my brother, papyrus... - Sans
  47. he's a human-hunting FANATIC. - Sans
  48. papyrus would definitely use "aniki." i think. what's your take. - @FwugRadiation on Twitter, September 10, 2015. Archived on December 01, 2015.
  49. "Sans and Papyrus are brothers, but which is the older brother and which is the younger brother? The English script leaves this unclear - they're simply brothers. What's more, Toby had intended for the brothers' relationship to remain unclear. Unfortunately, the brothers' uncertain relationship presented a major translation problem: there are words for "younger brother" and "older brother" in Japanese, but not for "brother" in general. Rather than make a blind guess, the translator consulted with Toby for details. Thus, through the translation process, it was definitively revealed that Sans is the older brother and Papyrus is the younger brother." - Legends of Localization Book 3: UNDERTALE, page 118
  50. hey.
    is your refrigerator running?
    - Sans
  51. HELLO? | UNDERTALE GLITCH - YouTube
  52. Nice day today, huh?
    Birds are singing, flowers are blooming...
    Perfect weather for a game of catch.
    - Asgore

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