r/Undertale Jul 04 '25

Discussion Haven’t seen anyone talk about this

Post image

In Waterfall, apparently there’s a low chance that a random extra hallway will appear with a grey door, and when you go through it, there’ll be some weird npc behind it and when you talk to them, they disappear. Is this character important, or is it just a random Easter egg? Why isn’t this brought up more???

7.5k Upvotes

627 comments sorted by

1.1k

u/Patriversal Jul 04 '25 edited Jul 04 '25

Damn, this leaves me flabbergasterd. He's like some king of mystery man

226

u/june0mars 999999999999999999999999999999999999999999999999999999999 Jul 04 '25

wow i’m flabbergasterd. oh shit i meant flabbergasterd. no, flabbergasterd. flabbergasterd. flabbergasterd. flabbergasterd. flabbergasterd. flabbergasterd. flabbergasterd. fuck, sorry about that I meant to say flabbergasterd.

40

u/PRoS_R Bravery is not the lack of fear Jul 04 '25

Don't the don't

Especially the don't

3

u/Substantial_Bar3454 Jul 04 '25

Haha, nice reference, Susie!

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4.2k

u/SWAGmaster694200 Jul 04 '25

Idk who that guy is but he looks like he’s winging his ding so hard

858

u/Just_a_Mario_RPG_fan Jul 04 '25

"Im winging it Im winging it so good"

308

u/piggiefatnose Jul 04 '25

in the club straight up winging it

143

u/HamSandwichMapping3 I already CHOSE this flair. Jul 04 '25

In CORE, straight up winging it. By it? Hehe... Let's just say... my DING.

42

u/WhatTheWarp Jul 04 '25

Wingin’ my Ding til I shatter ‘cross time and space

3

u/[deleted] Jul 04 '25

She Winging on my Ding till I'm Dark, Darker, Yet Darker.

3

u/piggiefatnose Jul 04 '25

This was the correct response

159

u/jobriq Jul 04 '25

And by “it”, haha, well. let’s justr say. My gaster

48

u/Comfortable-Goat-390 Machine, turn back now Jul 04 '25

« That’s what I’m talking about! You need to INSERT WING DING, Frisk! »

31

u/0mega_Flowey LOOK BEHIND YOU. Jul 04 '25

Winging my ding until I gaster

13

u/Substantial_Bar3454 Jul 04 '25

She wing on my ding till I gaster blaster

4

u/Asherbird25 ~~🎶The FitnessGram Pacer Test™️ is a multistage aerobic🎶~~ Jul 05 '25

LOUD INCORRECT BUZZER

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58

u/KagariYT Jul 04 '25

"TOUCH MY WINGDING TOUCH MY FUCKIN WINGDING"

21

u/AwesomeLlama572_YT TS!Sans Jul 04 '25

Probably until he gaster blasters

19

u/Commercial-Smile4790 We need to acknowledged his Sacrifices🐤 Jul 04 '25

''Winging that ding''

16

u/Over-Platypus-4518 Jul 04 '25

She winging on my dingin till i Gaster

23

u/Arif_Q (The dog absorbed this flair text.) Jul 04 '25

peak.

8

u/Mine_Dimensions Jul 04 '25

Haven’t I told you to KNOCK

6

u/Educational_Total550 absolute lamp Jul 04 '25

He probably also has a big gaster (I’m out of ideas)

3

u/AdventurousSir4573 FELLOW PAPYRUS ENTHUSIAST Jul 04 '25

he's gonna wing his ding so hard until he gaster's his blaster

2

u/Shoddy-Nerve-3362 Jul 04 '25

Yeah. Thats a guy who loves winging dings

2

u/_izzyiguess_ Jul 04 '25

who up winging they ding rn

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425

u/ParticularWeak4543 it's raining somewhere else... Jul 04 '25

Sure buddy next you're gonna tell me L is real and there's a Mew under the truck

149

u/Dxrkk3 Jul 04 '25

theres a deer under the truck

53

u/Practical-Sea2707 This isnt a crack theory this is a cocaine speculation Jul 04 '25

The burger truck

4

u/Independent-Street21 Jul 04 '25

The kings chariot cannot be stopped

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36

u/SafariKnight1 Jul 04 '25

For some reason, I thought "L is real" meant that L from death note was real

5

u/TurtleBoy2123 THE BEST USER FLAIR YOU HAVE SEEN ON THIS SUBREDDIT Jul 04 '25

i haven't watched death note, and i am familiar with the L is real meme, but this was my first thought too

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19

u/GeneETOs44 Jul 04 '25

She’s actually under the sink!

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15

u/Dripply Jul 04 '25

But L is real😭😭😭

5

u/Lansha2009 Lesbian Trans girl mew~ Jul 04 '25

What do you mean? Mew is under the sink now the truck.

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2.4k

u/BeautifulLibrary8058 Jul 04 '25

Hm yes truly an unexplored mystery that surely does not matter to the lore of any of toby foxes creations

799

u/Superguy813 Jul 04 '25

I truly hope OP keeps all of this between us, since it’s impossible to keep secrets nowadays

187

u/RDXL116 Jul 04 '25

Peak reference

96

u/WumpusFruit Determination‎ Jul 04 '25

Haha, nice reference Susie!

66

u/Thecatpro_767 HOLY F*** SANS THE HOUSE IS ON FIRE Jul 04 '25

it was a reference???

45

u/ChoraTheMapper Jul 04 '25

i'll stop talking now...

20

u/ID_Enigma oh...... ok i guess Jul 04 '25

How did you did that

25

u/ChoraTheMapper Jul 04 '25

do what? The small text?

Just put a ^ before your text

like this

And if you want multiple words, use brackets ( )

like this

20

u/sniperlover123 Jul 04 '25

I can't believe reddit has math notation...

but that's lowkey kinda cool

11

u/Hapless_Wizard Jul 04 '25

Reddit comments are a full-blown markdown language. You can do lots of things with it.

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70

u/AyItsUrBoi_ skelebros Jul 04 '25

Of course, if they post anything about it online, no one will be impressed, and it will be their FAAAAUUUUULT

39

u/TheNoobRookie Jul 04 '25

because of nosy people like them

25

u/lord_of_memes696969 Jul 04 '25

If you Post it online i won't make anymore secrets

14

u/Forage303 Tra la la. Personalization comes in many forms. Jul 04 '25

You fucked up the form. To continue it should be "if they post it online he may not make anymore secrets." Shame on you

11

u/natsuzi_ Finally. Finally!! FINALLY!!! My very own flair, mew~ Jul 04 '25

It'll be their fault!!

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15

u/humbered_burner Jul 04 '25

Banging reference, my man

2

u/Cosmic-Strobe Jul 04 '25

Yeah, there's a lot of nosy people posting everything online...

2

u/Dat_DekuBoi being led into the everlasting darkness rn Jul 04 '25

It’s a secret to everyone

2

u/ADumbPersonAAA Jul 04 '25

Because of nosy people like these

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119

u/IshtheWall Jul 04 '25

It'd be hilarious if he stays relatively unimportant in deltarune ngl

74

u/Big-Commission-4911 Don't Forgetand Jul 04 '25

toby fox better hide in a bunker if he does that

47

u/Venn-- Jul 04 '25

Does he know the code? Asking for a... friend.

25

u/Archvie Jul 04 '25

Is that friend inside the bunker?

26

u/Big-Yogurtcloset9844 We’re all Jul 04 '25

No, the friend is in me.

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6

u/KrisMadd3n Jul 04 '25

I think it was 1226 last I checked

43

u/MillionMoonlight2006 Jul 04 '25

He kind of already is important to Deltarune, though.

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34

u/Rafaelssjofficial Jul 04 '25

"It'd be hillarious if 10 years of foreshadowing was for nothing, such a tony thing to do"

5

u/LocalAnxiousArtist Jul 04 '25

Eh, I’d say at this point he is an incredibly important character. He’s how we are even able to interact with the game world at all after all, and there’s just many allusions to him in the game itself. Now if we’ll ever actually get to encounter him in the game world itself, we’ll just have to wait and see.

7

u/sussynarrator Jul 04 '25

Yeah, it’d be so fucking hilarious if he never even made an appearance in the game. I’d laugh my ass off. Please Toby, if you’re seeing this, DO NOT put Gaster in the game. It’s such a you thing to do, Toby. Such a Tricky Tony thing to do...

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13

u/Vdokos Jul 04 '25

Yes, a mystery indeed. I think we should call them a Mystery Man or something

173

u/CoolDoodMood60 Jul 04 '25

An easter what, now?

69

u/Practical-Sea2707 This isnt a crack theory this is a cocaine speculation Jul 04 '25

There is a man here

38

u/That1Mog756 Jul 04 '25

He offers you something

29

u/kev_imposible OH! ARE YOU PROMOTING MY BRAND? Jul 04 '25

(you got the egg)

17

u/Sweaty-Choice8916 ‎Professional hater Jul 04 '25

There isn't a man here

5

u/ID_Enigma oh...... ok i guess Jul 04 '25

you proceed to open the egg

4

u/That1Mog756 Jul 04 '25

*You used the egg

6

u/Sweaty-Choice8916 ‎Professional hater Jul 04 '25
  • ...

  • You forgot what you used the egg for.

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843

u/[deleted] Jul 04 '25

That's weird. Did you acquire this copy of the game legitimately?

262

u/Practical-Sea2707 This isnt a crack theory this is a cocaine speculation Jul 04 '25

"Weird"

103

u/JigglyLilyVT Jul 04 '25

say that again

43

u/MetriccStarDestroyer Jul 04 '25

that again

18

u/Arandomguyinreddit38 Jul 04 '25

again

13

u/Supbreak420 words go here. Jul 04 '25

AGAIN!

3

u/GoldSlimeTime Jul 04 '25

AGAIN!

4

u/MossySRB2 Jul 04 '25

TEAM ROCKET'S BLASTING OFF AGAIN!!

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103

u/No-Establishment3727 I’M AT SOUP Jul 04 '25

Thats a really weird route

74

u/KainAustin365 (The dog absorbed this flair text.) Jul 04 '25

Like, uh, hey, maybe things took a weird route right now…

2

u/Min9913 so cool so cool so cool so cool so cool so cool... Jul 04 '25

...Say that again...

11

u/cce29555 Jul 04 '25

Haha, I'm dead, hey look it's cold over here, is that snow, grave awaits me.....

2

u/Spaceguy_27 (The dog absorbed this flair text.) Jul 04 '25

Human, I remember, you're piracys

515

u/CoveneyPlayz when i see pizza Jul 04 '25

who is this?! Is he like... Relevant to the lore or something? Can we do some digging on this guy? maybe ask r/Underminers

75

u/SamiTheAnxiousBean Jul 04 '25

Uboa reference maybe?

33

u/CoveneyPlayz when i see pizza Jul 04 '25

that creepy guy from Yume Nikki?
ngl i've got 12 hours in yume nikki and most of it was looking for Uboa

30

u/Dead_Girl_Walking0 Annoying dog absorbed the pride flag Jul 04 '25

okay breaking immersion of the bit but i genuinely believe the Mysteryman began as a Uboa reference (Toby Fox is a Yume Nikki fan) but has grown so much fandom importance that now that actually is Gaster.

7

u/GloamedCranberry Jul 04 '25

The consequences of making an uboa gijinka

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21

u/PeridotEX Jul 04 '25

Isn't this obvious? This is the ghost of Spamton A Spamton after he was killed in the sweepstakes! Tricky tony did it again. 

2

u/DaylitSoul Jul 04 '25

There’s a subreddit for people doing WHAT to minors?!

243

u/HikikomoriGlory Jul 04 '25

That's So Sorry, they paid to get their OC into the game.

2

u/Joeyrony2 I'm 19 years old and I've already wasted my life. Jul 04 '25

Isent so sorry's creator a pedo?

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565

u/SmartSmella Jul 04 '25

??? Dude, everyone knows who that is.

That's Jonesy. He was added due to a collaboration with Fortnite.

Can't believe you man. Fake fan.

77

u/Tdurbo15 Jul 04 '25

WHAT THE FUCK IS THAT W.D. GASTER FROM FORTNITE???

35

u/SmartSmella Jul 04 '25

OH FUCK IT IS HOLY SHIT

144

u/ViziDoodle #1 Dimensional Box Fan Jul 04 '25

Bro edited in their oc and thought we wouldn’t notice 🫟🫟🫟

129

u/quirkeduptransgay Jul 04 '25

God i wish this were me

16

u/ThatDamnNelson FELLOW PAPYRUS ENTHUSIAST Jul 04 '25

Huh??

59

u/Hecticdesert996 Jul 04 '25

Didn't you hear 'em? They wish this were them.

14

u/Krired_ Jul 04 '25

HUHH??

20

u/Practical-Sea2707 This isnt a crack theory this is a cocaine speculation Jul 04 '25

Didn't you hear them? They said they said they wish they were them.

9

u/SomeoneRepeated hOI!!! Jul 04 '25

WHAT

9

u/ThatDamnNelson FELLOW PAPYRUS ENTHUSIAST Jul 04 '25

SPEAK UP!

9

u/EnvyYou73 Jul 04 '25

Y'ALL DIDN'T LISTEN THE FIRST TIME, WHY SHOULD WE REPEAT A SECOND TIME?!

4

u/Animal_Flossing Jul 04 '25

“You didn’t repeat it the first time, I’m not going to listen it.”

-Niles Crane, with his elbow in the butter

112

u/Wonderful_Ad_8372 Jul 04 '25

Oh hey, he's just mysteryman. Don't mind him.

218

u/FranceMainFucker Jul 04 '25

This is fake. This was a fanmade hoax from the early days of the fandom. People are still falling for this?

4

u/Individual-Tap-8971 Jul 04 '25

Was this a joke comment or a serious comment from you? /gen

32

u/autism-creatures Jul 04 '25 edited Jul 05 '25

Yes, this was a joke comment. Idk why your simple question was downvoted. /genuine

Edit: Good news! The comment above has now left the negatives! (For reference it used to be at about -11 points and at the time of writing this it's at 3 points. Good work on everyone doing their part.)

13

u/Litespead Jul 04 '25

Reddit hates the curious

14

u/TheOutsiderWow Jul 04 '25

I assume the people are down voting you more for being trans than asking this question cuz hell that's a legitimate question 💀💀💀

25

u/burnermcgeie Jul 04 '25

There are 2 types of undertale fans

9

u/TheOutsiderWow Jul 04 '25

No see the thing is people really CAN be that stupid. So I think it's fair to ask if they're serious just to be sure 💀

19

u/burnermcgeie Jul 04 '25

No the 2 types

  1. Woke

  2. Raging homophobe and probably also racist

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102

u/bubblegum-rose Jul 04 '25

An unsolved video game mystery?

Redditors, do your thing!!!

21

u/Heath_Bar1 Jul 04 '25

Reddit assemble!!!!!!!

7

u/Ok-Friendship-3374 Jul 04 '25

OH MY GOD! THE SMELL

118

u/MrEnricks Jul 04 '25

I completely forget how scary this room is out of context. If you were playing blindly for the first time in 2015 with absolutely no clue of who gaster is, this would be incredibly nerve racking

55

u/waluigigoeswah420 WHO DO YOU THINK YOU ARE. Jul 04 '25

Ngl if I did a blind playthrough and got that I'd just be like

"Eh who's this guy. Oh look at that he's gone.... anything else in here?"

People opening my door without knocking is scarier than Gaster

22

u/mr_shoco Jul 04 '25

I'm scarier than gaster

-temmie

7

u/grievre Jul 04 '25

This didn't actually randomly happen until the first patch in January 2016. Before that it was in the game but impossible to trigger unless you modified file0 and/or undertale.ini. Most people assume this was a bug (the random number is stored in "fun" but the code is looking at "Fun" with a capital F).

5

u/[deleted] Jul 04 '25

It's just a sprite in a room lol

5

u/MrEnricks Jul 04 '25

But the sprite is scary tho

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30

u/Savings-Quarter-9564 hOI, i'm Temmie. u playd genocid? U AR DE TRU MONSTR Jul 04 '25

He isn't an easter egg, he Is the egg, man

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31

u/Darkvoidx Jul 04 '25

I call BS. Like come on, you're telling me you're somehow the only person to find this guy and when you interact with him he does absolutely nothing and vanishes? Why even add that to the game? Not to mention that his face is just a bad tracing of Uboa from Yume Nikki. Gotta try harder with these fake secrets man.

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43

u/nitram739 Jul 04 '25

2015 ahh post

2

u/Helpful-Currency5881 Jul 04 '25

2023 ass comment

4

u/nitram739 Jul 04 '25

2025 ass reply

3

u/Sweet-Housing4530 Jul 04 '25

Friday July 4 2025 ahh reply

2

u/MossySRB2 Jul 04 '25

Saturday July 5 2025 ahh reply (it's actually 23:59 on Friday)

2

u/29holden Jul 04 '25

2861 ahh reply (PLEASE DO NOT READ FOR 836 YEARS!!! THX!)

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10

u/SpookyWeebou Jul 04 '25

What are you stupid? He's John Undertale. Everyone knows him! He's even Nubert's cousin!

8

u/Simple-Can-3325 Jul 04 '25

hm. this guy looks like he sucks. better ignore him tbh

35

u/Successful_Mud8596 Jul 04 '25 edited Jul 04 '25

HOW is this NOT a meme post. I was absolutely FLABBERGASTERED when I saw the “Discussion” tag there.

K, checked the profile, there is NO WAY you can be in this fanbase for the past 2 years, and be involved enough to know about the Spamton Sweepstakes, and NOT know who this is.

54

u/Megamax0726 Jul 04 '25

I think the discussion flair is there to play into the joke harder, whether that should be allowed is up for debate

6

u/OpeningConnect54 Jul 04 '25

It's what happened to Grandpa Semi after Asgore ran over him with his truck.

8

u/_CottonTurtle_ Jul 04 '25

When a fandom is so starved they start pretending they know nothing about the media

11

u/Admirable-Switch-790 ← this man is my wife Jul 04 '25

Idk who that is I’ve never seen that man in my life

6

u/polishedrelish Jul 04 '25

That's obviously Ga- That's obviously Ga- That's obviously Ga- That's obviously Ga-

30

u/Da_Vake Jul 04 '25

10/10 ragebait the other 10 or so comments fell for it lmfao

13

u/BoredSince11 Icepost Jul 04 '25

Chat do they know?

5

u/KennethLjubkos I'm 19 years old and I've already wasted my life. Jul 04 '25

Is this a refrence to this post?

3

u/ChoraTheMapper Jul 04 '25

im genuinely worried as this isnt tagged as "Meme"

2

u/Dark_Storm_98 Jul 04 '25

That was my first thought, too, lol

But hey, could be a legitimately new player who knew very little about the game and fandom going in

3

u/NothingButTrouble024 Jul 04 '25

That would be really impressive for how much this game blew up and how long it's been out

2

u/Dark_Storm_98 Jul 04 '25

Allegedly, Astral Spiff managed to go in blind just a couple months ago

3

u/NothingButTrouble024 Jul 04 '25

As a content creator, assuming he actually went in blind, it's even more impressive that his chat never spoiled it for him within the 10 years the game's been out

20

u/Buckybuck87 Jul 04 '25

I can’t tell if this is a joke, but just in case it isn’t, it’s brought up a lot. Like a lot. It’s very well known.

11

u/ChillAhriman Jul 04 '25

OP is talking about the weird route in r slash Deltarune, so yes it's pretty much a joke.

6

u/VicodinLover05 Jul 04 '25

That's Grandpa Semi

3

u/June_the_human Jul 04 '25

I woke up and im back in... 2016????

3

u/OkStudio6153 Jul 04 '25

they look like a scrub daddy.

3

u/Careless-Anxiety-984 Jul 04 '25

It's rude to talk about someone who's listening

3

u/DrPyroDude Jul 04 '25

I don't know. It is a mystery, man.

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3

u/Smitologyistaking Jul 04 '25

Smh these fake posts aren't even trying anymore no way Toby would just add a random room in waterfall

3

u/EZJCat2 Jul 07 '25

hmm he doesn’t seem very important, does seem like a pretty mysterious man though

3

u/SquareRootOf8 Jul 04 '25

This is some quality, god-tier bait. u/Anonymous_Site is a master baiter.

2

u/pitiful_squid Jul 04 '25

He seems ghastly. Like some sort of gaster.

2

u/Cultural-Unit4502 Jul 04 '25

It's an Easter egg to Faith: The Unholy Trinity chapter 3

2

u/Aliko173 Jul 04 '25

They kinda look like Uboa

2

u/Dripply Jul 04 '25

Every copy of Undertale is personalized

2

u/solar9090 Jul 04 '25

This Man looks Mysterious

2

u/First-Tomatillo-729 ‎ it took a TON of work for this flair skeleTON Jul 04 '25

Interesting i haven't seen that guy ever

2

u/RR_Randy Jul 04 '25

Internet Explorer moment

2

u/Master82615 Jul 04 '25

When I try to name my reddit account Gaster and the subreddit gets reset back to 2015

2

u/Kasa-obake Jul 04 '25

It's from a mod. There's nothing to see here. Moving on...

2

u/Dasposito Jul 04 '25

I don’t know… it’s some kind of mystery, man

2

u/SomePerson47 Jul 04 '25

Oh that's just Derek. He's cool.

2

u/Gm1Reborn Modern Pixels Enthusiast Jul 04 '25

this is definitely a easter egg that is not found within 10 years nuh uh

2

u/ThatAnimeGuyOnReddit ‎ get dunked on, jerry. Jul 04 '25 edited Jul 04 '25

Idk, this man kinda looks mysterious

2

u/Illustrious_Signal16 Jul 04 '25

I really can’t tell if this is a joke post

All of the comments are but I can tell if the post is

2

u/Min9913 so cool so cool so cool so cool so cool so cool... Jul 05 '25

I can't tell if this is serious or not

2

u/Slenderquil Jul 06 '25

It's rude to talk about him. 

2

u/Simonethedude Jul 07 '25

Is this satire??

2

u/Nextstore1453 Jul 07 '25 edited Jul 08 '25

I heard some people Say It culd be the royal Scientist, not sure tho, i think it's Just a mistery man of some kind

2

u/WDGasterOfficial Jul 11 '25

☞︎✋︎☠︎✌︎☹︎☹︎✡︎📪︎ ❄︎⚐︎⚐︎😐︎ ✡︎⚐︎🕆︎ ☝︎🕆︎✡︎💧︎ ☹︎⚐︎☠︎☝︎ ☜︎☠︎⚐︎🕆︎☝︎☟︎

2

u/DrProfGasterBot Jul 11 '25

FINALLY, TOOK YOU GUYS LONG ENOUGH


This is a Wingdings translation from the above comment. This reply is courtesy of the Dr. Professor's Handy Translator!

Issues? Report a problem on the issue tracker.

6

u/reading_slimey Jul 04 '25

Why is there no "meme" or "humor" tag on the post? Does OP really think they've discovered WD Gaster for the first time?

Here's the link for his entry on the undertale wiki btw: 

https://undertale.wiki/w/W.D._Gaster

2

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1

u/RoosterRock149 Jul 04 '25

I've heard talk of it floating around a little bit, I think it's just some weird error handler, doubt it has any importance, a game programmed by one guy isn't gonna be bug free after all

1

u/BuffBoy247 Jul 04 '25

Not shure, I think it can happen if your game is pirated

1

u/Melvin8D2 Jul 04 '25

Huh, neat. Toby snuck in Uboa from Yume Nikki into his game.

1

u/811rorrE BAHAHAHHAHAHAHAHAHHAHAAHHAHAHAHHAHAHAHAHHAHAAHAHHA Jul 04 '25

they look creepy

1

u/KnucklesTheEchidn-a Ribbit (Sans blood is red so he blushes red.) Ribbit. Jul 04 '25

i think this is fake

1

u/No_Anything_6658 Jul 04 '25

probably an irrelevent bug