Undertale

Undertale
Developer: Toby Fox Platforms: Windows, Mac OS X, Linux Released internationally: September 15, 2015 This game has unused areas. This game has a hidden developer message. This game has unused graphics. This game has unused items. This game has unused music. This game has unused text. This game has debugging material. This game has a hidden sound test. This game has revisional differences.

Qu'est-ce que tu est en train de faire?

Tu cherches de secrets?

Ne fourre pas ton nez là où il ne faut pas.

Ou tu pourrait apprendre quelque chose que tu serait LOIN d'aimer...

Hé hé hé.

— La page d'accueil de Undertale, dans le code HTML de la page.

To do: La liste des CHOSES À FAIRE est située ici Formater cette page en sous-pages Ajouter les différences de la version 1.001

Sous-pages

Mode de déboguage Malheureusement, il n'y a aucun insecte à trouver dans ce mode.

Graphisme inutilisés Il y a tellement de chiens dans ce jeu! Il y a en à même qui sont INUTILISÉS!

Pièces Inutilisées De piédestaux à bonbons à des NPC intéractifs.

Messages du Développeur

"Ne "rippez" pas les sprites!" Avertissement

Version 1.00

S'il te plait ne met pas en ligne ces énormes pages de sprites. 
Juste parce que la trucs bizarres ici SONT utilisées, J'aimerais mieux qu'ont les voient en contexte en premier. 
attendez genre un an...
si tu prend les sprites normalement vues pour Spriter's Ressource ou quelque chose dans le genre j'men fous si tu prend ces 2 là stp rend le plus simple

abc_1111_0.png contient une note grossièrement écrite adressée aux "rippers" de sprite, en particulier ceux du site Spriter's Resource, leur disant d'attendre un an avant de mettre les pages entières en ligne.

Les jeux faits avec Game Maker, comme "Undertale", rangent tous leurs sprites sur de grandes pages de sprite en PNG au lieu d'avoir chaque sprite ou personnage séparé dans des fichiers individuels. De ce fait, si quelqu'un venait à mettre les pages en ligne, la chose la plus facile serait de les laisser comme elles sont... ce qui laisserait ainsi touts les sprites contenant des spoilers sur la même page.

Le nom étrange de ce fichier a été choisi pour le forcer à apparaître au début de la liste des fichiers ( qui est en ordre alphabétique) et de rendre son existence plus évidente... ce qui ne change rien, car la liste des fichiers n'est disponible que si les sprites sont séparés par nom avec un programme externe. Oups. Ce problème a été réglé dans les versions suivantes.

Version 1.001

 
tu sais ce que je
    HAIS?

c'est le
        bepis

CE GOÛT
 cette odeur
  cette texture

hé...
    tu   
      salive... 

La Version 1.001 remplace la requête de non mise en ligne des pages de sprite par une note vaguement érotique à propos de "bepis" ce qui est une référence à un habitant de Moonside deEarthBound qui déteste la nourriture que le joueur aime. Toby Fox étant un fan de Earthbound, et Undertale prend grande inspiration de ce jeu.

The lack of any real meaning to this new text and the fact that it replaces the earlier request can be taken as permission to begin posting spritesheets, as supported by this forlorn-looking email.

"Ne spoile pas le jeu!" attention

abc_123_a.ogg

Allo. Ha-ha-ha-ha-aie du respect et ne spoile pas le jeu. C'est impossible d'avoir des mystères de nos jours à cause de gens bruyants comme toi. Stp garde tout ça entre nous. Si tu le met en ligne, je ne ferai plus de secrets. Personne ne sera impressionné. Ce sera de ta faute! He-he-he-he-ha-he-he-ha-he-he.

Ceci est un fichier sonore de huit voix-de-texte disant aux gens de ne pas publier les secrets du jeu. Qui avec toute sa tête ferai— attend un instant...

Le fichier étrange a été choisi pour le forcer au dessus d'une liste alphabétique de fichiers et de rendre son existence plus connue. Tous les autres fichiers de musique et de sons en OGG présents dans le fichier du jeu débutent avec soit "mus_" ou "snd_".x

Ce fichier a été mis à jour dans la patch 1/20/2016. La version à jour enlève presque tout ce qu'il y avait dans le fichier original.

Le message de Toby Fox

Une partie du charme du jeu est le mystère du nombre d'option où de secrets il y a. Si tu lis ceci, s'il-te-plait ne publie pas ce message où cette information nulle part. Sinon fabriquer des secrets ne servira à rien.
À propos, la plupart des fichiers texte semblant être omis sont en fait utilisés.
Si tu peux trouver le contexte en jeu pour un asset, tu peux le montrer. Mais si tu ne peux pas, cela veut probablement dire que tu n'as pas regardé assez longtemps.
N'importe quoi vraiment inutilisé je le publiai moi-même, plus tard.
Vivre dans un monde comme ça, où les gens peuvent simplement tricher pour avoir les réponses du code... ton impatience t'as VRAIMENT endommagé, pas vrai?

Cette notification est placée au début du segment de texte (STRG). Elle est utilisée dans le script gml_Script_attention_hackerz_no_2. Elle applique ces 4 lignes aux variables demonx, demony, demonz et demond respectivement (ces noms peuvent être trouvés entre les lignes du message). Ce script est, évidement, utilisé pour avertir les craqueurs. Elle est la première entrée dans le bloc CODE et SCPT du fichier data.win, pour augmenter la chance d'être lue encore plus.

Dans la version 1.001, cependant, elle a été changée à ceci:

Salutations.
Tu t'es mis complètement au clair.
Compris.
Moi, ton humble serviteur, te suivrai au plus loin...

Les variables ont été renommées à demona, demonb, demonc et demond, aussi. Curieusement, la première ligne du message de la version 1.00 et toujours présent avec sa variable associée, mais elle a été bougée à la ligne 2436 (au milieu des messages utilisés pour les choix de personnages spéciaux).

Musique Inutilisée

mus_kingdescription

(Source: Toby Fox)

mus_dance_of_dog

Ce morceau fraîchement funky joue exclusivement dans la salle d'erreur du chien "dansant". La salle est accédé de la manière la plus simple en bidouillant votre sauvegarde.

mus_sigh_of_dog

Ce morceau fraîchement pas funky joue exclusivement dans la salle d'erreur du chien dormant. La salle est accédé de la manière la plus simple en bidouillant votre sauvegarde.

mus_star

Musique qui utilise les instruments de Star Fox. D'autres pistes dans le jeu utilisent des instruments venant de jeux comme Mario Paint, Final Fantasy VI, Chrono Trigger, et EarthBound, donc ceci ne serait pas trop bizarre.

According to Toby Fox, this song was intended to play when Madjick's magic orbs turn into healing hearts. However, this proved too difficult to implement because the Core's background music continues into monster battles, so it was scrapped.

(Source: Toby Fox)

mus_f_part3

Une autre variation du thème de Flower. 0:20 et après est utilisé pour les transitions de scène (par contre, un son qui lui ressemble joue à la place de cette trame), mais le début n'est pas entendu en gameplay normal.

mus_f_finale_1

Un début inutilisé de "Finale". Cette tramme n'est jamais jouée, car "mus_f_finale_1_l" joue à la place. C'est simplement une version plus courte de la première partie du boss, probablement supposé jouer quand le joueur redémarre le jeu après être mort dans la 2ème partie du boss Flowey Photoshop.

mus_piano

Joue à la fin de la démo d'Undertale si tu tues Toriel dans un playthrough neutre et apparaît complètement en bas de la soundtrack, mais n'est pas utilisé dans le jeu final.

mus_ruinspiano

Une version plus lente et grave du thème des Ruines, avec une variation de la mélodie. Probablement remplacé en faveur de "An Ending".

(Source: Toby Fox)

x

mus_birdsong's Hidden Loop

"mus_birdsong" est jouée quand l'oiseau te transporte l'autre côté du ravin dans Waterfall. Cependant, la musique dure seulement un tour avant de stopper graduellement. Le fichier EST joué en boucle correctement par contre, et un peu de la musique à la fin est coupée en gameplay normal.

Sons Inutilisés

Une voix (probablement Mettaton) gémissant.

mus_sfx_ahh

Flowey dit "ahh".

mus_sfx_voice_triple

Flowey dit "triple" (triple).

mus_sfx_voice_jafe

Flowey dit "jafe".

Niveau d'Activité

Appuyez sur Shift ou X cinq fois sur l'écran title pour avoir cet écran pratique. Activité Level A s'affiche si tu as une fin neutre Activité Level B s'affiche si tu as une fin pacifique Activité Level C s'affiche si tu bats Sans deux fois ou que tu le tues. Si aucun de ces prérequis sont atteints, "No Information" s'affiche à la place.

Combats Inutilisés

RG03 and RG04

Dans les fichiers du jeu avec les combats ID 76, il y a un combat complet prêt avec deux Gardes Royaux de plus, RG03 et RG04. RG03 et RG04 sont mentionnés par Undyne pendant une conversation au téléphone qui parlent de changer avec RG01 et RG02 sur certains jours. Ils ont probablement été émis du jeu, car leur événements en temps réel ne fonctionnaient pas correctement. Leur combat tourne autour de ceux-ci étant de vieux amis qui ne le sont plus, puis la solution pacifique est de les remettre ensemble. Les gardes eux-mêmes sont un peu incomplets, car les deux utilisent le sprite d'Aaron battu en tant que placeholder.

Texte inutilisé

le coup de foudre d'Alphys

LOOLLLL IF YOU CAME TO THIS PART OF THE CODE TO SEE WHO I HAVE A CRUSH ON YOURE OUT OF LUCK

traduction

LOLLLL SI TU ES VENU À CETTE PARTIE DU CODE POUR VOIR SUR QUI JE KIFFE TU N'AS PAS DE CHANCE

Le script pour le quiz de Mettaton contient un commentaire, très probablement étant une citation en-personnage d'Alphys. Spécifiquement, il est placé juste après que Mettaton mentionne qu'Alphys nomme ses variables de programmation de ses personnes en vues, donc ce commentaire apparaît en tant qu'une blague intérieure à ceux lisant le script du jeu.

Chien Fatiguant

Ce chien fatiguant a ses abréviations en combat pour son mode normal ("Annoy Dog") et sérieux ("Dog") programmés. Cependant, le Chien Fatiguant ne peut être mis dans une boîte dimensionnelle et disparaîtra si le joueur sort de la pièce dans laquelle il est trouvé, donc il ne peut jamais être remis dans le combat. Conséquemment, ces lignes ne peuvent même pas être vues sans éditer le jeu.

Messages d'erreur

Snowed Inn error

Error.

A generic error message, found among the strings for Snowdin's Snowed Inn.

Undyne chase error

* A rousing error.

* (Error.)

Among the strings used when Undyne collapses from heat exhaustion are these two error messages that appear to serve the same purpose.

HER OPINION OF YOU IS VERY... ERROR-Y.

ERROR!!!
SEE YOU LATER!

Among the strings used when Papyrus calls you about your clothing and Undyne's murderous intentions towards you is this error.

A trip to errorland

* Where will we go today?

         Error       Error

A developer's hell.

This is among the River Person's lines.

Alphys shipping error

* Error...

A generic error message located directly after Alphys asks the player if they think Toriel and Asgore will get back together. Guess not.

You've elected me in error

WOWi, Nice error.

Right after you're asked to be the ambassador to the humans is this error.

Flavor error

* It is ERROR MESSAGE!
  Yes         No      

If you reset your game, Toriel will guess your favorite pie flavor from the choice you made pre-reset. If this went wrong, this would probably be displayed.

ACT menu error

    * Error

At the very end of the ACT menu strings is this yet again generic error message.

Item menu error

* If you are reading this,&  I messed up somehow./%

The message that shows if you try to get info for a slot that's empty in your inventory.

Item description error

* Error!

This same generic message appears again at the end of the strings listing the item descriptions.

Papyrus call error

ERROR????

Among Papyrus's lines for when he talks about the spaghetti trap room with what he says depending upon if you say you ate it or left it is this error. This probably would have appeared if your choice could not be determined by the game.

Undyne call error

* Error?

Among Undyne's lines for when she talks about Monster Kid depending on whether you saved him, ran away and had Undyne save him, or otherwise ran away is this error. This probably would have appeared if your choice could not be determined by the game.

Ending call error

 [look left]  * i'll be honest.
  [winking]   * i have no idea what
                happened for you
                to get here.
 [look left]  * this is actually some
                sort of error-
                handling message.
[eyes closed] * so, if you're getting
                this ending...
 [look left]  * tell whoever made the
                game, okay?
  [winking]   * they'll fix it, or
                if it's a novel
                situation...
 [look left]  * they might even add
                another ending to
                the game.
[eyes closed] * chances are, though...
  [no eyes]   * you're just a dirty
                hacker, aren't you?
 [look left]  * yeah, get outta here.

Dialogue spoken by the character Sans for an ending meant to function as an error handler if none of the qualifications for any other endings are met, which cannot be triggered during normal gameplay. The actual script data contains control codes to change Sans's expression, represented here by bracketed text.

The music track "Dogsong" is played while Sans is speaking.

(Source: YouTube: Undertale "dirty hacker" ending)

Gyftrot error

Error!!

This generic error that you've seen a million times appears again among Gyftrot's strings.

This article is a work in progress. ...Well, all the articles here are, in a way. But this one moreso, and the article may contain incomplete information and editor's notes. Notes: I got lazy after this, I'll describe the errors better later, and probably put all of these unused strings into subpages when I can.

Aaron error ;)

Flagrant 
error
; )

Mettaton quiz show error

ERROR?

8-legged error, ahuhuhu~

... that this is&an error message!?

Finally, a slightly interesting error message!

This appears after Muffet receives a telegram from the other spiders that changes depending on your spending choices.

Papyrus fight error

THIS IS AN ERROR
MESSAGE.
REALLY!!!

Flowey's Error

* Error

Flowey will display this message and soft-lock the game if you manage to get in his room before fighting Toriel.

Papyrus's puzzle error

Error, Pepibs.

Grievous error

* grievous error

Placed among the strings for the annoying dog absorbing the artifact and Sans's asking to hang out.

Mettaton fight error

* Error Baby

That error's a bomb!

* Error.

* Error,

These two generic errors are among the lines for the bomb-defusing minigame.

Burgerpants error

* I'm a goofy goober Yeah 
  this errorr. message.

The strangest error message so far is among Burgerpants's lines. It appears to be a reference to the 2004 SpongeBob SquarePants movie.

Newspaper writer error

* Beautiful.
* An error message.

True Lab error

 error

Papyrus's toolshed

WHAT!?
THAT'S IMPOSSIBLE.

If you get into Papyrus's toolshed by manipulating save data, reading the note will result in this message.

Legendary Artifact

* (This will never happen.)

Normally, attempting to obtain the Legendary Artifact will cause a dog to appear in your inventory, which will then steal the Artifact when used or dropped. However, if you remove the dog from your inventory via debug mode or other means and interact with the Artifact again, you'll get the placeholder dialogue above.

Inaccessible Echo Flowers

* Error!

Interacting with any of the numerous inaccessible Echo Flowers in Waterfall will give this generic error message.

Unused pre-battle message

You shouldn't read this.

The battle encounter that involves Aaron and Woshua being freaked out by Napstablook's music is not supposed to show a "pre-battle" message.

Satisfaction

Monster seems satisfied.

Unknown. Will appear by pressing O + P in debug mode while fighting Mettaton EX, then sparing him.

Quiche Guilt

* Somewhere^1, a quiche's worst&  fear becomes reality./%%
* A quiche in another timeline./%%

Part of an unused set of scripts named "quicheguilt" that involves you standing still in the quiche room.

Horse Stable

Among the lines for the garbage dump and Napstablook's house, there are a few lines implying there was a horse stable somewhere in Waterfall.

* (It's a horse stable.)/
* (Do you want to go&  inside?)&         Yes         No \C
* (You jostle the door.)&* (It's locked.)/
* (Suddenly^1, from inside&  the [redacted], you hear a&/%%

Interestingly, we're hearing a noise from inside what is supposedly the horse stable, but for some reason, whatever it was is replaced with "[redacted]", and whatever it is that we hear at the end is just outright removed.

This dialogue seems to be triggered by a trash can in Napstablook's courtyard. Inspecting it if flag 92 (yet again unused) is less than 3 will cause the same figure from room 272 to appear inside the "stable", and say

* x/%%

in Wingdings.

Monster History Part 6

Unused monster history text that is the only outright confirmation of what "fallen down" monsters as discussed in Alphys's journals are.

(It's a book labelled Monster History Part 6.) Read it Do not
Unfortunately, monsters are not experienced with illness.
However, when monsters are about to expire of age, they lie down, immobile.
We call this state "Fallen Down."
A person who has Fallen Down will soon perish.

Mortal Enemy request

As this comes right after Napstablook's friend request in Hotland, it may have happened as a result of rejecting the request. In the final game, the friend request rejects itself regardless of your choice.

METTATON has sent you a Mortal Enemy request.
Congratulations! You are now Mortal Enemies with Mettaton.
COOLSKELETON95 has posted a comment on this change.
CONGRATULATIONS, YOU TWO! WISH YOU A LONG AND HORRIBLE RIVALRY.
You rejected the request.
METTATON has sent you an invitation to "Die."
RSVP? Respond Ignore

Bepis valley Granola Bars

Bepis valley Granola Bars

Found along the lines of the unused "Mortal Enemy request" text. Its purpose is unknown, but it could just be a humorous parody of Nature Valley brand granola bars.

Art Club Room

This message is shown if you look at the sign in the Art Club Room in Hotland (where the secret boss So Sorry can be found) on a genocide route. However, the entire second floor of Hotland is blocked off by a force field on a genocide route, making this impossible to see normally.

(Art club is cancelled!)

Slow-dance with Mettaton

Among the lines for Undertale the Musical are these lines, possibly indicating you were originally meant to dance with Mettaton:

(Hmmm? Getting creative?)
(Dance with me, darling.)
(Oh! The audience can feel#your passion!)
(Show the audience#your passion!)
(So close... How passionate...)
(... do you need some help?)
(... what ARE you doing?)
(Don't stop now!)
(Look at you, leaping around#the stage...)
(Can't keep your hands off, huh?)
(Is that how humans dance?)
(Humans are stranger#than I thought.)
(Oh! They're really#getting into it.)
(Moving so far...)
(Who can blame you?)
(Hmmm, I'll have to get used#to it...)
(Even better than#I thought...)
(So that's wha #it's like.)
(Dancing with... A human.)
(What a shame...)

TestMonster

"obj_testmonster" is an enemy called "TestMonster", an early version of Froggit which, despite appearing to be a simple dummied-out enemy, is actually a cleverly-hidden event trigger that, if encountered in Sans's room after befriending Muffet on your 255th playthrough or later, proves key to reviving Gaster and saving Asriel. Just kidding, it was used for testing.

It shares many of its battle dialogues with Froggit, but it has a number of extra lines buried in its code.

* You feel intimidated by the&strength of this adversary.^4 &* Just kidding.
* The enemy cooks a small&bowl of flies.
* You can't concentrate&over the sound of croaking.
* The battlefield is filled with the smell of mustard seed.
* You think hard about words&that rhyme with frog.^4 &* Log.^4 Dog.^4 Snog.^4 Pog?
* A frog can't lick its&wounds because its tongue is&just too stretchy.
* You say some raunchy&things to those frogs.&Jeeeez!/
* There's definitely some&sort of reaction./^
* What's your favorite color?& &    * Red           * Orange"
* Do robots dream of&electric sex?/^
* I hate programming this./^

Flowey's big boner

* Big boner down the lane^8 %%
* Big boner down the lane^4 %%

These two strings are located among the dialogue for the Photoshop Flowey boss fight and the hacked "Floweytale" intro sequence. It's unsure what they could have been used for, but they likely were never meant to be seen by the player.

True Lab Entry Number 17

ENTRY NUMBER 17
monsters' physical forms can't handle "determination" like humans' can.
with too much determination, our bodies begin to break down.
everyone's melted together...

Alphys' entry number 17 is skipped in the True Lab, but is found in the code. Alphys instead explains this at the end of the area. W.D. Gaster has his own entry 17, which can be seen in room_gaster.

Placeholder Screens

Two screens featuring the annoying dog are present in the game. These are used as "error handlers" in case something goes wrong, such as loading a corrupted save file or entering an invalid or otherwise inaccessible room.

The song "mus_dance_of_dog" is used on one of the error handler screens (the left one), at a random pitch. The other song is "mus_sigh_of_dog".

Unused Items

ID	Name	Short Name	Serious Name	Description	Use Text
2	Croquet Roll	CroqtRoll	CroqtRoll	Heals 15 HP Fried dough traditionally served with a mallet.	You hit the Croquet Roll into your mouth.
5	Rock Candy	RockCandy	RockCandy	Heals 1 HP Here is a recipe to make this at home: 1. Find a rock	You ate the Rock Candy.
6	Pumpkin Rings	PunkRings	PmknRings	Heals 8 HP A small pumpkin cooked like onion rings.	You ate the Pumpkin Rings.
8	Stoic Onion	StocOnion	Onion	Heals 5 HP Even eating it raw, the tears just won't come.	You ate the Stoic Onion. You didn't cry...
9	Ghost Fruit	GhostFrut	GhstFruit	Heals 16 HP If eaten, it will never pass to the other side.	You ate the Ghost Fruit.
18	Puppydough Icecream	PDIceCram	Ice Cream	"Puppydough Icecream" Heals 28 HP. Made by young pups. Note: This item's name is too long to show up properly when using a dimensional box.	Mmm! Tastes like puppies.

(Source: rawr.ws)

Oddities

Annoying Dog's Sale Price

The Annoying Dog can be sold for 999G and haggled up to 1251G (the highest sale price of any item in the game!), but as mentioned above, it will disappear if taken out of the room it spawns in, so this can never be seen on a normal playthrough.

Developer Oversights

Mettaton EX Battle Essay

Mettaton EX has an "essay" question where you can type in text and have him comment on it. Unfortunately, typing "x" or "z" ends the essay unless CTRL is held down, leaving some words (in most playthroughs) untypable.

The following words can't be triggered:

• sexy
• foxy
• tantaliz (covers both "tantalizing" and "tantalize")

Mettaton's House

Mettaton's bed, upper walls, and TV have collision, but it's impossible to get in that section of the room.

Version Differences

Windows	OS X

In the Windows version, the monitor in Alphys's lab follows your movements. However, this is only a static image in the OS X version. The static image for the monitor is still in the Windows version's files, unused.

'spr_labcamera_emergency_0'

'spr_labcamera_emergency_1'

1.001 patch

To do: Hastily pulled from the Undertale wiki. Add anything that's somehow not on that page, and add detail to this stuff.

• The loading splash screen from the demo was restored.
• The Joystick Config menu was graphically updated.
• A kill sprite was added for "Ice", which is encountered by stealing Ice Cap's hat. Previously, it mistakenly used a placeholder sprite of Aaron.

v1.0	v1.001

• The color of blue attacks was adjusted somewhat, as the original, cyanish hue made it hard for red-green colorblind players to distinguish these attacks from white ones.

• Some dialogue was updated to account for aborted genocide runs, such as the phone call in the invisible maze room, Papyrus's bone box during his date/hangout, and possibly more.

v1.0	v1.001

• An oversight that would cause Papyrus to appear during the cutscene where Undyne first appears, even on routes where he was killed, was fixed.

• A visual solution was added to the piano puzzle for the benefit of hearing-impaired, tone-deaf, or just plain uncertain players.
• Dialogue relating to the "Clam Girl" NPC in Waterfall was changed and added.
• The grandpasemi.ogg sound effect was renamed to grandpatemi and repurposed for Temmie, if you refuse to give her Tem Flakes.
• Various layout changes were made to attempt breaking the "Lab Skip" glitch. This didn't quite work.

v1.0	v1.001

• The bathroom sign in Alphys' Lab was moved from the right side of the door to the left side in order to patch the bug described above.
• New dialogue was added for Burgerpants involving the Nice Cream Man.
• The advancement of Sans's pre-fight text was altered slightly. He now says the short version after you survive the opening attack three times, rather than after he is defeated once and the player reloads to fight him again.

(Upon closer examination, the holes in the fabric seem to be growing.)
(Might take a while for the dog to fix all of them.)
(Dogs aren't usually very good at knitting.)
(A crocheting dog is out of the question.)

• Dialogue was added to the secret Annoying Dog room, elaborating further on the "patch" that is supposedly needed before the Dog can be fought.
• As detailed above, the "don't spoil the game, dataminers" warnings were changed due to no longer being necessary.
• The Gaster-related "fun" setting now works without having to manually edit the .ini file first.
• The Check option in battle no longer shows the actual stats used by the game code, instead displaying arbitrary numbers or silly messages.
• The original version of the game had a major oversight that would allow the player to achieve a True Pacifist ending while having a non-zero amount of EXP (by reloading after a Neutral route in which no monsters were slain, killing some monsters in the Core, and then going to pick up Undyne's letter).
• The unusually large space between Asgore and Monster Kid on the final version of the menu screen was shortened.
• A (presumably) debug feature that would cause Undyne and Alphys's kissing animation in the cutscene leading up to the Asriel fight to start early by pressing the space bar was removed.
• Various graphical glitches and typos were fixed.

A "1.001v1" patch was later released. This is a Steam compatibility update; nothing was otherwise changed from 1.001.

Linux patch

The Linux version of the game is identical to 1.001, but includes a bugfix where pressing Z while pressing Enter would not register the Z input.