10 Undertale Secrets you DON'T KNOW...

[@ShayyTV]

The typo at 4:26 is actually just a subtle reference to typos in Undertale

[@IAreNotaPotato]

Second

[@User-72413]

Okay

[@SPAMTON249]

Bro is in the future

[@kagandizlek3878]

​@@IAreNotaPotatohuh!?

[@IAreNotaPotato]

​@@kagandizlek3878 what's up?

[@droycon]

The second door glitch is actually foreshadowing for Gaster’s twin Double U.D Gaster.

[@Omarlol3rd]

I fucking love you

[@Kevin_Tapia]

Genius

[@auau534bruh]

underding gaster

[@wynseas]

you are so funny i am in love with you

[@Unoriginal____Starwalker]

Bro maxed out their charisma lmao

[@cherrypuddles]

The legendary artifact room has multiple interactions most people will never see. If you get the dimensional boxes from Alphys and backtrack to the artifact room, attempting to use them will give you the narraration "The box is aclog with the hair of a dog." Attempting to call Toriel in this room tells you that "The ringing is coming from inside your inventory."

[@OriginalBlizzerd]

i knew the box one, but i didnt know the second one. intresting!

[@endervalentine9588]

Also, if you hack to remove the dog from your inventory, the flavour text just says “this will never happen.”

[@OriginalBlizzerd]

@@endervalentine9588 how are you finding these-??? but thats cool-

[@endervalentine9588]

@@OriginalBlizzerd I’ve been obsessed with this game nonstop basically since it came out :D I know a lot of secrets

[@OriginalBlizzerd]

lol same@@endervalentine9588

[@Maker0824]

The “Mortal enemy” thing is both funny, and totally in character for the game. I don’t know why it was removed. Thanks for showing off how insane Toby is for putting in so many details that 99.99% of players will never know. Everyone who discovered even a single one of these naturally must have felt quite special.

[@elizathegamer413]

Toby probably didn’t want you to get into a kismesitude with mettaton XD

[@ARandomMinecraftVillager]

I really hope they add that in Project Harmony

[@OriginalBlizzerd]

i thought the little tree and the slowed down snowdin town was normal and well known lmao- :')

[@Fannintendociccio1]

I was actually disappointed when you were explaining the mortal enemy request that you didnt actually mention the real obscure thing inside of this room that people actually dont know about. If you go all to the right in it, there is a lonely cliff at the edge of the map. Entering and exiting the room had a small chance to make a shadow silhouette appear on this cliff, a humanoid figure of some kind staring at Frisk.

[@OriginalBlizzerd]

@@Fannintendociccio1 ooo thats cool!!

[@plasmakitten4261]

I like to think the LV20 weak thing is evidence that Toby was trying to develop an Omega Asgore fight at some point but couldn't figure out a way to balance it that made sense with the lore and power scaling he had established, before realizing it would be much more thematically appropriate for Asgore to fold like the other bosses and leave Sans as the last true challenge, even though it leaves open the question of why Asgore ignored the warnings to absorb the human souls.

[@GarryDumblowski]

Apparently Flowey intercepted Undine's call and mimicked her voice so that Asgore didn't know anything until Frisk arrived... Or something. I dunno. I don't even remember how I learned this, or where in the game it's told to you.

[@lucylu184]

@@GarryDumblowski sounds legit

[@shady8045]

@@GarryDumblowskithat’s ironic considering Flowey ends up begging to Asgore to stop you himself to save his ass.

[@calvia98]

Absolutely insane that after so many years since the game's release, the community always finds something new about it, just shows how much Toby cared about it.

[@shinshi1972]

"something new"

[@53ra]

This isn't new stuff, we found this a while ago. It's just the newer fans finding more stuff out. I always watch these videos over the years to see if anyone's found anything new, but there's not much else you can find since we literally dug through all the files already

[@marcusbrown5781]

And that he is doing good after its popularity

[@VonTachyon]

​@@53raI mean I'm a 2016 player and most of these facts are news to me

[@m.l.7558]

​@@VonTachyoni AM too

[@beachballssideaccount]

12:40 Sounds like those admins were either too lazy or too intimidated by Mettaton's hotfinenticuteness to fact check for themselves

[@JaggerG]

Tbf I imagine they get a lot of misinformation submitted, either from misunderstandings, or inside jokes.

[@konbkob4156]

I mean, if someone told me that hotfinenticute was the actual best answer, I'd be confident that it was fake too

[@gamelover1118]

I actually discovered the tree in the water puddle thing a long time ago, but I didn't know it was that secret. Strangely, I found it by dumping the water during the epilogue portion, which makes the tree grow instantly after the last cup. Because of that, I assumed that was the intended way of seeing it.

[@yutuberocks22]

I guess Toby didn't expect for people to pour out all the water after the epilogue started, and just set it so that the tree would appear during the epilogue if the puddle was there. I mean, I didn't even know you could make a puddle lol

[@asdfghyter]

same here! i discovered it in my first playthrough of the game

[@FR35H_tv]

"stop it" LMFAOOO

[@Mark_theSkeleton]

Flowery be like: Stop it.. get some help

[@catscooliguess]

I imagine that Frisk just starts stomping their feet and flowey gets pissed off

[@Megarayquaza03]

ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ

[@shady8045]

Why is that in the game? Like why would pressing Z even trigger anything there it’s in the middle of an attack? Toby was on one in 2013 man lmao

[@yamalpaca5861]

speaking of Snowdin Town, in Grillby's you are able to walk on top of the bar table. This only works in Genocide because there's supposed to be a NPC that prevents you from doing this

[@IDontReallyWantAYoutubeHandle]

I found that one myself whilst messing around in Grillby's years ago!!!! I'm so glad another person knows about that lol

[@OriginalBlizzerd]

ye. i found out by accidentally doing it XD

[@nightfallsongbird]

This is hilarious to think about diegetically “Nobody’s here to stop me, I can do whatever I want! Watch me walk all over the bar losers.”

[@alzhanvoid]

​@@nightfallsongbird Finally, I have the High Ground!

[@Orenshaii]

Holy cheese, never thought I’d find a “secrets you don’t know” video where I ACTUALLY didn’t know most of the stuff. Awesome job on this!!! I would LOVE to see a part 2 if you ever feel like making one. Have an awesome day!

[@doll1726]

literally man i said “try me” and was very pleasantly surprised! i only knew like three things

[@Twisted_Code]

Yeah this was surprisingly well informed. I'm normally not big on trivia for that reason and the fact it's mostly inconsequential to know, but this video made me happy.

[@YumenoUtaVT]

i cant believe i actually Did know most of this secrets.... what am I doing with my life?...

[@genericname2747]

Hey, I've never seen anyone acknowledge the little cabin. I like that little cabin, it's so mysterious. Who lives there? Who do we see walking around? My headcanon is that it's Noelle, who moved to an isolated spot after her father died.

[@ratboygirl]

well that is awfully depressing LOL poor noelle, she can't catch a break

[@xcenex479]

I’ve seen people headcanon it as Noelle, Dess and Rudy’s house.

[@SemiHypercube]

I love the "Mortal Enemy request" joke, I wish that was viewable in the final game without glitches Also I'd like to see another video like this

[@NutBreadMSMC]

I agree. I wanna see something like “Undertale’s biggest glitches”. that one time travel trick where you can skip from the Epilogue all the way back to Toriel’s house using Toriel’s diary is absolutely mind boggling to me.

[@WoodenClockwerk]

​@@NutBreadMSMCdamn never knew that

[@ethanotoroculus1060]

My gripe is he left out the best part, what it says when you answer no to the prompt: _(Mettaton has sent you an invitation to "Die".)_

[@WoodenClockwerk]

@@ethanotoroculus1060 i was wondering what it would say if you refused!

[@ethanotoroculus1060]

@@WoodenClockwerk And it's such a better punchline right?????

[@admiral3075]

0:12 "frisk, please leave me alone." LMFAO 😭

[@MagnusSheeler]

How does that happen?

[@darthcaed7411]

Spamming interact ​@@MagnusSheeler

[@aslightlysanescientist3874]

​@MagnusSheeler, if you go back to the flowers you landed on after being Asreil, he'll be there, and you can talk to him

[@johansanchez8530]

I think the tree puddle thing also works even if you didn't empty the water cooler. You can just go back in the epilogue and empty all the water and the tree will appear

[@ShayyTV]

oh that's really funny if that's the case 🤣 this game is held together by duct tape

[@ma.2089]

Makes sense to do it that way cus it’s such an obscure easer egg that not only would programming so many conditions around it would be a bit much, it allows ppl more of a chance to see it.

[@tylisirn]

@@ShayyTV Undertale really is not particularly well engineered game. Which is quite inspirational. You don't need to be a master programmer to make a masterpiece as long as you have vision and good story to tell. As long as the code does what it needs, the player never sees how rickety it all is under the hood.

[@DoctorBones1]

@@tylisirn Yeah, its an absolute MESS to look at the source code but since its a 2d pixel art game it really does not matter, any device can run it without any hiccups so it is not a big deal.

[@Midnight_Warrior]

I half did and half didn't know the Hotfinenticute thing in ShyRenn VAs "Saying a lot of things as Frisk" someone requested that they say that and have Mettaton cry cause that's the nicest thing anyone has said about them and I just assumed they did a keysmash so props to that dude for knowing that

[@fridaykitty]

I think I saw you get the "stop it" line on stream once, proving once and for all you have the fastest textbox mashers in the west

[@KirbyGamerEX27]

Oh so it wasn't your personal game file Like the time you replaced the chara intro ost

[@DeterminedBlade]

@@KirbyGamerEX27wait YOU are here? Howdy!

[@KirbyGamerEX27]

@@DeterminedBlade what's up

[@mrowlsss]

​@@KirbyGamerEX27What?

[@mrowlsss]

​@@DeterminedBladeWho?

[@shaunduzstuffs]

8:28 Unfortunately, this is wrong. This track also plays if you spare Papyrus to abort genocide, and go back to Snowdin

[@gachaduo6226]

AND, if you do a genocide run EXCEPT you spare all the bosses, this also happens.

[@KPoWasTaken]

It happens in a neutral route where you kill all snowdin monsters. It's fan-dubbed by some as the "neutral-massacre" version

[@MusuemBucket]

@@KPoWasTakenyeah, I’m surprised rarely anyone talks about that version

[@batdogduke]

I am absolutely interested in another video like this. I had no idea there was actually a second chance at the Gaster room, as previously I assumed it was hard-coded to kick you out with no entry back in.

[@ShayyTV]

That's what I thought at first too! Figured there had to be a failsafe or something but nope lol

[@Footy_skelengton]

​@@ShayyTVmaybe do another one but for deltarune

[@gfghdgfghd6391]

@@ShayyTVSomeone has gotten triple grey door

[@funnymannotfunny]

@@gfghdgfghd6391who

[@BexhasDied]

11:26 love the small detail of an impossible instance here, just for fun

[@RHVGamer]

Undertale is a 2015 2D role-playing video game created by American indie developer Toby Fox.

[@StarHellJumperyfydydushshshsos]

really?

[@RHVGamer]

@@StarHellJumperyfydydushshshsos No I made it up, Undertale isn't real

[@atwistedb]

Don’t lie

[@Adrian-ze9ud]

It's not a video game. It's art.

[@HotdogBro12]

@ihavecringecontenti though underman is a knockoff game of ondurtellla

[@RadioactivOrang]

12:32 shayy, you called yourself out, ya freak! love your content though, keep at it, not many people play undertale anymore, it's nice to see that people are still using it for content (and good content at that!)

[@JoyOfCreativeService]

The real unknown easter egg with the tiny house is that sometimes, it doesn't even show up. I got this enough times (and didn't notice the house the other times) that I used to think the house was just a hoax.

[@ShayyTV]

From my testing this isn't true, but you do have to walk all the way to the left to pan the camera fully as it isn't on the screen normally

[@JoyOfCreativeService]

@@ShayyTV Maybe it was just because I used to play on the fan-ported mobile version that was kinda buggy? But I do remember it only ever didn't show up on my first playthrough after installation. (I kept running out of storage and deleting it)

[@Querez8504]

@@JoyOfCreativeService Well then there's your answer

[@Corruptedhope]

​@@JoyOfCreativeServiceWHERE DO I GET THE MOBILE VERSION?

[@JoyOfCreativeService]

@@Corruptedhope I think I just looked up "mobile Undertale" on KZbin

[@Mrsir529]

9:53 Another secret for this area that I figured out on my second genocide run. If you grab water from the cooler and leave the room, but go back into the last room before it can give you the “the cup vanished” text, it says “the cup disappeared due to a mysterious force” instead.

[@leafgem]

It's amazing how I still discover new things about this game, even after 8 years.

[@irishuisman1450]

Undertale is the Breath of the Wild of indie games, you just keep finding new shit xD

[@DavidSartor0]

Have you read my long list of obscure Undertale facts? It's in a reply to one of the top comments here; the one beginning with "The legendary artifact room has multiple interactions most people will never see." Three good facts from the list: Flowey has very strange handwriting. Holding Shift or X makes your SOUL move at half speed. The bandage item is a band-aid type bandage, while Chara's corpse was probably wrapped in gauze bandages. (Kris also wears a gauze bandage.)

[@Tobannn]

In truth, everything that is mentioned in the video has been discovered years ago, 2016-2017 and some in 2018 to be more precise.

[@leafgem]

@@Tobannn yeah, but I personally discovered these when watching this video.

[@shargonreznove9969]

I just remembered to sub because I've been watching your videos, and it has reignited the spark of passion I have for undertale, thank you

[@elliepuppyy]

i thought i would definitely know all these secrets, but i’ve never seen the flowey “stop it” and it’s so funny to me

[@cm3693]

Haven't played Undertale in a hot minute but I always like finding out little secrets as such about games I've played in the past. Would love to see a part 2.

[@WooffleDee]

Knew everything in this video except for the "stop it" interaction so yeah guess I really am learning new things about this game 8 years later which is crazy

[@SwiftlyZone]

9:32 i swear if people start calling this a gaster reference soley for being mysterious i will actually lose it

[@thebiggestcauldron]

Yeah, and it's barely even "mysterious"! It's just animated background!

[@JJStuffy]

*”I’m Wing Gaster, the royal scientist!”*

[@greyscaleadaven]

Leave it to Shayy Undertale to actually make more than half of the facts things I had no clue about despite being in the community for several years, keeping up with most theory content, and watching probably dozens of full playthroughs of both games. I feel like I learn something new about these games every time I watch someone play them, whether it's a new piece of dialogue or a choice I wasn't aware of impacting the story. That's a huge part of what makes them so special in my eyes. Shayy Deltarune is probably the most qualified person to make a secrets compilation.

[@HalfBreadChaos]

Ooh I've seen the Double Gaster Doors glitch before! Spacecore got it to work when learning to RNG Manipulate the Xbox version for the secret control-unplugged text. So if you really want that triple-gaster-door footage, I'd poke those mad lads about it.

[@RichConnerGMN]

hi hbc

[@Alphie_]

I find it really interesting that I knew a few of these already, but wasn't expecting them to be on the list of "obscure" ones. I just...thought they were pretty well known.

[@someperson7491]

i was really expecting the undyne call in front of the lab to be on this but not the tree

[@clawcakes2]

yeah, man in house and secret tree seem to be somewhere on the middle of the iceberg where ones like mettaton mortal enemies and hotfinenticute are WAY down at the bottom LOL

[@ShayyTV]

they require people to read which means 99% of the fanbase would not know about them

[@UncreativeHandle87]

@@someperson7491 Undyne call in front of the lab?

[@Alphie_]

@@ShayyTV Ironic for a game with like...2 spoken lines.

[@Frotheru_The_Dragon]

12:24 Me,looking at the down left corner: Also me,seeing the name:wait,thats illegal!

[@xxGreenRoblox]

no it's not it's called file0

[@papyrusty368]

I thought that the slowed version of Snowdin Town was normal! I didn't know it was a secret! Also pls do a sequel. It's awesome!

[@belfee]

same lol

[@Turbulation1]

There’s also an alternate slowed down version of Snowdin Town that wasn’t even covered in this video and it’s if you exhaust all the encounters in Snowdin and then go to Town but that you never initiated a genocide route by killing everything in the ruins, so you’re still on Neutral but a very dark version of it.

[@papyrusty368]

@@Turbulation1 That's awesome! I had no clue!

[@d4rkshadow826]

Same!

[@paintedhen.emerson]

6:08 “Here’s one that may surprise a lot of people.” Me, who’s utterly normal about Mettaton (and read the segment title): HIS FAVORITE FAKE WORD!!!

[@yveshku5583]

This was very fun to watch, plenty of interesting things. Only one I knew of was the double door, remember seeing that on stream. Kinda wish the Mettaton joke was accessible by normal gameplay though. Mettaton is great, but it's hilarious to be officially declared mortal enemies with him.

[@jakisrandom1]

10:20 no, it's because most people didn't even know there was a special interaction for disposing the water

[@wingedmirage4226]

I wonder if maybe you were originally gonna have a unwinnable fight with Chara at the end, and that's why Level 20's stats are slashed down.

[@LoserLilith]

Plausible, but you could also just give a boss like that more defense to compensate...

[@OriginalBlizzerd]

-got it to 69 likes. nice- could be.

[@whact]

i think you would fight asgore instead, the game constantly says that he would absorb the souls in the genocide route, but you get there and he suddenly doesn't know anything, it's almost like toby just decided to not make an asgore fight for whatever reason and didnt even give an explanation as to why

[@OriginalBlizzerd]

@@whact i mean asgore does appear to be much stronger than he appears, but also flowey if im right did say "monster" which would make asgore assume one of his people or something. - if im wrong, PLEASE forgive me, ive been fighting sans for a long time now -

[@whact]

@@OriginalBlizzerd undyne says at the end of her battle that alphys already told asgore to absorb the souls, if that was the case then asgore would have already been transformed before you even reached his room

[@rootvegetableboy3515]

it's so crazy that even 8 years after release we're still learning new things about this game :') i expected to know most of these going in but only knew about the puddle tree & the dress so i'm pleasantly surprised! great vid as always

[@jma0645]

11:07 Wait she is a lion? I thought she was a camel with a grandma wig and glasses

[@ShayyTV]

A CAMEL???? 🤣🤣

[@Wizardrex562]

​shayy is the type of guy to respond to a comment in full capital letters and send 2 laughing emojis immediately after

[@JaggerG]

@@ShayyTVShe's SUPPOSED to be a LLAMA!

[@Conspiracy_Fox]

Uhhh papyrus that’s a man don’t be fooled papyrus they will try to infect you with stupidity

[@based980]

he*

[@Ulmy2ndchannel]

2015: GASTER DOOR? GAME THEORY LORE? 2023: double door. 2024: 5 doors.

[@LunarLyra]

OMG I NEVER KNEW ABT THE TRANS LION!!!!! That made my heart melt, it really is so so heartwarming seeing such realistic and proper transfem rep that i can actually relate to a large bit and i’d never expect such a nice little interaction like that to just be hiding right under my nose for 6 years lol also love the little tree and the infinite gaster lol

[@basilplushie2534]

Ewww tran Oh wait i am one too

[@Velocir4ptor875]

And I hate it

[@Pyrofoxical]

did you not forget to take your hormones today?

[@puparomi]

oh i pray you continue to do more videos like these. you’re genuinely such a fun person to listen to!

[@EvilMC10]

i actually knew about the mortal enemy thing being unused but didnt know you could actually get it in game lol

[@ShayyTV]

The Punch Card is a pathway to many abilities some consider to be... unnatural.

[@JaggerG]

@HarryLLCDarth darther yet darther.

[@Sonic-oh2ly]

10:22 i think my favorite part is his subtly awkward posture before wearing the dress, and better posture after

[@XTLmaker]

Definitely would like to see another video like this, I really like the 'facts you don't know' videos where the facts are actually unique and not like 'you can get to Gaster with the fun value' which most people know.

[@SPOOKERY-sm9qq]

I’d really love to see another video like this from you! I love learning new things about this game, even though it came out like 9 years ago, I’m still learning things about it had never known!

[@CrumpetCraig]

I really enjoyed this video. I've been a diehard Undertale fan for years and learnt almost every fact about it. I usually can't find any good videos about facts I didn’t know anymore because I know all of them, and this one was a breath of fresh air. I really love learning obscure facts about Undertale and I'm glad that there's still facts I don't know so I can learn them. Keep up the good work!

[@DavidSartor0]

I have some you might not know: Flowey has very strange handwriting. Papyrus spells Hapstablook's name wrong. Chara's first dialogue was probably released May 26, 2013. Alphys's rectangular glasses were inspired by John Egbert. Flowey is a very good actor, and probably good at self-deception; possibly having or not having a SOUL doesn't actually change him much. On the surface, one of Toriel's house's doorknobs is backward. Alphys's cameras see the menu. Several of Sans's lines were left out due to coding errors. Suzy is not the yellow kid. The bandage is a gauze bandage. (Kris's is a band-aid type bandage.) The chain smoker in the Snowdin Library smokes cigars, not cigarettes. Alphys turned Mettaton's SOUL up-side down. The human takes a particular interest in the Delta Rune in Gerson's shop. In Undertale's Demo, you can rotate the title. When Burgerpants smokes, the letter on his hat switches from M for Mettaton to W (for Wumbo?) Snowdin's mouse is the only mouse who gives up. The period at the end of the Burnt Pan's description wraps out of the textbox. If you kill all dogs except Greater Dog, Greater Dog is lonely. If you kill all dogs except Doggo, he doesn't know they're dead. Getting struck by Vulkin's lightning attack temporarily increases your SPEED. The unused track "Star" was supposed to play when Madjick's orbs become hearts, but it was removed due to errors. Holding Shift or X makes your SOUL move at half speed. Tsunderplane is probably a ghost. You can get Muffet to spare you by buying about 9000G of Spider Donuts and Spider Cider in the Ruins. Napstablook has arms. In Hotland, Sans claims to not judge. The Judgement Hall's checkerboard floor pattern has one mistake (this one might be fake). Undertale's files contain 10 savefiles. 0 is Chara's, 1-6 are the other fallen humans', 8 is Flowey's, 9 is the final fallen human's, and 7 is probably Lemon Bread's.

[@existenceispain_geekthesiren]

10:00 you can also not realize it gives you dialogue cues and instead continue dumping out the water, until there's nothing left and Undyne just sits there, scortching to death, then you alt f4 thinking you ruined your pacifist save!

[@Rocket_Gunner7414]

i knew HALF of these didn't know mortal enemy knew stop it knew both ruins so fast at being wrong and snowdin inn didn't know gaster door ( gaster reference ) knew hotfinenticute didn't knew any of the music knew secret tree knew transdress and didn't know lvl 20 being bad ._. i never played undertale, since i am too poor but i am so obsessed with it that here i am. Wow.

[@CharaTR]

5:50 When I first played the game, I stumbled on my first route - after that I spent months trying to beat every ending in the game due to its bugs and quirks.

[@belfee]

I've actually run into the snowdin glitch on my time doing genocide and thought it was the normal track I didn't even know it was a glitch until now lol.

[@xxGreenRoblox]

please explain how intentionally putting a soundtrack into a game is a glitch

[@Azel_C]

13:06 my ears started ringing here and I thought it was part of the video until the video ended and my ears were still ringing lol

[@abdillahahmad7025]

When Frisk came to a set of two doors...

[@TheRealSuperKirby]

They entered the door on their left

[@abandoned_channel41515]

i thought the same thing when i saw the thumbnail lol

[@Seeks_stuff]

The fact I knew most of these secrets says a lot about how much I love this game

[@kreatona4219]

Wow i sure didnt know those secrets. It truly was like an under tale all along

[@theblackbanana1157]

2:58 i have seen this and was questioning whether my steam copy wasn't broken or something when i first saw it

[@attackofveganpotatoes1074]

I think about the lion a lot. When I first played Dr I couldn’t quite place where I’d seen the npc before. Scrolled through an Undertale playthrough and almost screamed when I realized who it was. I’m so happy for her.

[@JaggerG]

At first, I read that as "played doctor" and it completely changes the meaning ;^_^

[@garzillathehedgehog7005]

Nice video! I didn't know about some of these. I did, however, know about the puddle tree, the little guy in Snowdin, the transgender lion monster, and the slowed down music that plays in Snowdin Town. Though, I thought that the guy in the house was just common knowledge! And, just like everyone else, I really wish that "Mortal Enemies" text remained in the game. I'll also definitely have to try the "Hotfinenticute" thing in the Mettaton battle. (Even though I'm not the fastest person at typing in the world...)

[@dudepersonbroguy]

I’ve replayed Undertale so many times and a few months ago in my most recent play through I did the dumping the water from to cooler thing. I was so shocked and proud of myself for finding something I’ve never seen before in this game. Also great list the only secrets I knew were the water cooler, lion person, and background stickman.

[@philgaimz9847]

I knew the man in the house and the lion, but that's it. Always love learning more about this game!

[@SazumeZuric]

1:43 WOW, THAT WAS ACTUALLY GOOD

[@wejkdfjsdkf]

ive known of the snowdin house one for a while actually! i had no idea that people dont know about it also, that one about the lion with the dress is SOO cute i love it

[@the_best_username]

9:35 He and his family had lived their entire lives in a quaint cabin built by his great-great-grandfather, Old Joe Windypants. The cabin had yellow tinted windows, which gave it a warm feeling when the light of the hearth reflected on them. The walls of the house were made of wood cut from the trees of the surrounding forrest. There was a large cliff near the cabin. It was very tall, almost intimidating, but for some reason it made him feel safe. It was a peaceful existence, living in that little cabin. He had never felt like his life was in danger. Until.. that night. It was the holiday season! He was roasting chestnuts by the fire. His mother was knitting a scarf. His father was enjoying a mug of hot chocolate. His grandmother was telling the little ones stories. All was well in the little cabin. But.. something was.. .. off. Like somebody was watching them. "Son, be a dear and go check outside yeah?" He went outside. He looked right and left. He saw something in the corner of his eye. He looked up the cliff, and saw it. Two glowing red eyes. They had a mischievous energy about them, like they had just seen something they shouldn't have. He rushed back inside the house. He told his family what he saw, but when they all went to check together, it had dissapeared.

[@RockOverwatch]

Happy with the lion easter egg. giving them... Sans Rights (insert sans pun sound effect)

[@joaozes]

the lion easter *egg*... heh

[@dolcethesmorse1890]

I knew about the Tree, the Lion Lady and the Man in the House but I had no idea about the others! It's awesome to learn more about this game, another video would be sick!

[@kajmaj117]

Absolutely loved this video. Even if I didn't, I am always happy to see the occasional Shayy upload!

[@Marudream407]

WAIT. THAT'S A SPRITE OF BROKEN METTATON!?!?!!?!!!12:03

[@Zilicon]

yeah that’s if you kill mettaton

[@generallyunimportant]

noyno.......

[@Marudream407]

@@generallyunimportant uhyeah, that's my name, and I Just didn't know.

[@jeremyharrison4778]

Great video. Lotta the ones I’ve seen are very same-y i.e. “fun value 66” being the highlight of every vid. But the only one I knew about from this vid was the person in the house in the background. It’s so crazy that this many years after the game came out there’s still new stuff to find out about it.

[@TheunknownNVP]

It is possible to get the slowed-down Snowdin track other than not running into but nobody came screen before you reach Snowdin during a neutral route, let me explain. You don't have to do a genocide run to get the "nobody came" fight screen. Although there isn't a death counter during a neutral route at the save points, you can still kill enough monsters to get the "nobody came" fight screen, you just won't be able to see how much you have left at the save points and you will have to count it yourself. Course if you will kill everybody in the snowy area, you'll have to spare or just don't kill enough monsters in the Ruins. Anyway, after killing everybody in the snowy area during a neutral route, the slowed-down Snowdin track will play once you get to Snowdin for some reason.

[@SatokoHoujouOriginalRoleplayer]

Frisk: bepis Mettaton: YOUR FREE TRIAL FOR LIFE HAS ENDED. Frisk: -_-

[@bluelemon243]

9:39 its papyrus practicing taking the human to a date

[@WhiteFireTheDragon]

Maybe it's Martlet since she lives in a part of Snowdin that's connected to the *lower* level of the ruins. Therefore, her house would *also* be on a lower elevation than the main town proper. I'm kidding, but it's a nice thought.

[@nspeghetti]

@@WhiteFireTheDragonngl do have a point

[@Twisted_Code]

5:30 congratulations on your one in 10,000 run! This reminds me of CGP grey's "one in a million game". Mostly because it relied on that whole "if you're lucky enough, you could keep going down this rabbit hole" effect

[@Adrian-ze9ud]

WOW, I never knew about most of them. And thats REALLY weird. Dude, ten years in the future we'll still be finding new secrets, I'm sure.

[@uppishcub1617]

I don't think we can really know for sure if the Deltarune lion is the Undertale lion. It could be a Kris/Chara situation, where they're incredibly similar, but still different characters.

[@Ava-uq5dh]

I'm glad you love me a lot Shayy

[@abigaildoench208]

i can't believe after so many years of playing and watching this game, theres still stuff I don't know. thanks so much for the vid :)

[@jojonono2679]

I didn't even know about that Lion lady character in either undertale or deltarune. What a cool character with a nice arc and story.

[@Apathetic_Eye]

Please make more of these, I used to think I knew everything and every secret about Undertale and refused to play or watch someone play Deltarune because I'm too attached to the characters and plot in Undertale, this video surprised me a lot and made me really happy about content I didn't know. Thank you Shay.

[@clawcakes2]

this game is insane. the only secrets out of this list i've heard of before were superfast at being wrong (which i only learned about from watching shayy's streams LOL), the snowdin dude house, the epilogue tree, and the liondress (dress lioness). how is there so much STUFF IN THIS GAME MAN

[@thelemoncoffee]

finally, a 10 secretes you didn't know video that ACTUALLY has extremely obscure content in it!! kudos my guy

[@Zilicon]

"if you knew everything in this video, then you’re a freak" me who knew everything in the video

[@Snt1_]

FREAAAAAK

[@null7198]

One of the only actual videos to give Easter Eggs and Secrets I Actually haven't heard of-- Kudos for that alone, and extra for the nice execution!

[@Monopurp]

3:40 Another Fun fact about this: If you listen closely enough to the people snoring in the next room, you will actually notice they are snoring out “Determination.” (AKA game over screen music) Also a month after this video was released someone got triple gaster door

[@ZX_STH]

I knew about Flowey's "stop it" text, and the person who walks around their house. Everything else was new to me.

[@username5155]

2:09 Hey Shayy, you can just hold the automash button. You know, C/Ctrl.

[@Omarlol3rd]

Me when no deltarune:

[@vanderkarl3927]

Only ones I knew were: Superfast at Being Wrong, Hotfinenticute, Man in House, Secret Tree, and LV20 Sucks Definitely did not expect to walk away with as many as 5 new secrets, so great job!

[@Mintgracer]

1:46 i Love His Papyrus voice

[@drascia]

I'd love to see more videos like this! I always wondered how "stop it" was triggered, and I'm pretty sure I never knew any of the other facts either. I heard you say once that the Worn Dagger is the second-worst weapon in the game and I'm really curious why.

[@toriofthestarpalace]

5:23: The rare and threatening Double 👎♋❖︎♓⬧︎.

[@fnafplushieadventures6861]

11:26 so we just gonna ignore the fact that he was able to name himself gaster?

[@dis_light3615]

2 doors ?? that's already more than 1 !

[@E.EE.]

Lies

[@gattodev_real]

Theres like 9 empty dialog variables set for the "stop it" part. so you "advance" the dialog. Once you reach the Tenth variable, it will show "stop it"

[@crescentmoondemon6288]

5:55 you'd need the devils luck for that one

[@wildtamer4461]

I came into this video expecting it to be an easily debunkable or well known list, but you've surprised me. Have been playing since 2017, and i thought i knew everything, but i only knew 3 from this list. Bravo, creator!

[@CosmicsVoids]

When watching the Gaster part, my PC actually crashed. For a second I thought it was part of the video but when i hit Esc and nothing happened it freaked me out.

[@jakemichal1220]

this was way more in depth than I thought it would be. I thought it would be stuff like the dev door, mad mew mew fight, etc., but I think I only knew like 1 or 2 of these. great vid!

[@zeo4481]

2:40 Oh i didn't know that. I thought this was going to be about aggravating Omega Flowey. I guess there is still something i didn't know about this game after all 😅

[@King_Hehehe]

Papyrus is such a supportive friend, immediately congratulating you on entering into a mortal enemyship. We all need a Papyrus in our lives.