Omori soundtrack in Undertale's boss fights

00:00 - Napstablook (OST : Gator Gambol)
01:04 - Toriel (OST : It Means Everything)
02:17 - Greater Dog (OST : Tussle Among Trees)
03:32 - Papyrus (OST : Those Who Forget History)
04:35 - Dummy (OST : Flouring With You)
05:49 - Undyne (OST : Underwater Prom Queens)
07:02 - Mettaton (OST : CHAOS ASSEMBLY)
08:17 - Muffet (OST : Bready, Steady, Go)
09:49 - Mettaton EX (OST : You Were Wrong. Go Back.)
11:07 - Asgore (OST : GOLDENVENGEANCE)
13:03 - Omega Flowey (OST : Tee-Hee Time)
14:28 - Reaper Bird (OST : Fleur)
15:42 - Asriel Dreemurr (OST : OMORI/OMORI ALTER)
17:24 - Sans (OST : World's End Valentine)
Music by OmoCat team.
Game by Toby Fox.

[@DerioYT]

Timestamp : 00:00 - Napstablook (OST : Gator Gambol) 01:04 - Toriel (OST : It Means Everything) 02:17 - Greater Dog (OST : Tussle Among Trees) 03:32 - Papyrus (OST : Those Who Forget History) 04:35 - Dummy (OST : Flouring With You) 05:49 - Undyne (OST : Underwater Prom Queens) 07:02 - Mettaton (OST : CHAOS ASSEMBLY) 08:17 - Muffet (OST : Bready, Steady, Go) 09:49 - Mettaton EX (OST : You Were Wrong. Go Back.) 11:07 - Asgore (OST : GOLDENVENGEANCE) 13:03 - Omega Flowey (OST : Tee-Hee Time) 14:28 - Reaper Bird (OST : Fleur) 15:42 - Asriel Dreemurr (OST : OMORI/OMORI ALTER) 17:24 - Sans (OST : World's End Valentine)

[@rowcastjojo6497]

i was thinking World's End Valentine would be better fit with Mad Mew Mew's fight (the nintendo switch exclusive fight)

[@MarcTheDeveloper]

u forgot about undynes 2nd form form and mettaton neo since both of these bosses are available on genocide

[@everykelmemeiscanon3437]

Wow the unbread twins for muffet fit perfectly

[@everykelmemeiscanon3437]

OMORI makes me cry

[@DerioYT]

@@MarcTheDeveloper I know. For Undyne The Undying I probably would have used the OST for Space Ex Husband. I think I'm outta OST for Mettaton NEO

[@marcuscalixte4392]

The Asriel fight: *This is our final battle!* The OMORI music: *This is our final battle.* If that change in punctuation makes any sense

[@richardgibson8403]

From hopes and dreams To Hopeless (and dreams)

[@alexcollins9954]

You got This is our final battle! And This is the end.

[@jorted_julimak]

@@richardgibson8403 hopes and dreams to hopeless dreaming

[@letsreadtextbook1687]

Should've been *This is our final battle...*

[@totallyjokers]

Frisk: *agressive dreaming and hoping* Sunny: *violin noises*

[@sunny-ql9ll]

Undertale: But it refused. Omori: Omori did not succumb.

[@ECLIT]

But it did not succumb. Alternatively: Omori refused.

[@alvsenbeekmagambetov9124]

Guy who's name is umb: 😞😖😥

[@derbyharrington16]

@@alvsenbeekmagambetov9124 Why

[@kid9448]

@@ECLIT omori didn't feel like dying today

[@ki_mi9867]

@@alvsenbeekmagambetov9124 yea why.

[@yokuutsu9097]

I think it's confirmed that World's End Valentine is our Megalovania.

[@understorymainchannel8326]

Good for you

[@sagefurry]

our megalovania is more like final duet

[@understorymainchannel8326]

@@sagefurry well pretty sure it would be the final fights theme cause your fighting a depressed person.

[@Whataryu]

They sure have the hardest fights

[@understorymainchannel8326]

@@Whataryu yes

[@soulforger2742]

Crazy how much the music changes the vibe of the Asriel fight

[@DerioYT]

I agree. and the violin is present in both tracks

[@understorymainchannel8326]

It also fits perfectly

[@GalaxyNoodle]

IT FITS ALOT

[@countcrocodile1115]

Goes from "never give up, we gonna throw hands with G O D" to "fighting is futile, this is were it ends"

[@richardgibson8403]

From, “ey look determination makes this fight unloseable” to *”I should just die.”*

[@tiredpokenerd3398]

You somehow managed to make the Toriel boss fight even more heartbreaking

[@arandomcrusader8822]

They somehow made Asriel's bossfight sad

[@ng42.]

Your pfp matches your comment

[@itsoracle]

@@arandomcrusader8822 it was already sad

[@derbyharrington16]

@@itsoracle Hopes and Dreams didn't give that vibe though. It made it look like an epic boss fight which is not sad. Really, music changes everything.

[@Pixelbxyz]

BRO WE HAVE THE SAME PFP

[@beecat9636]

The fact that he use Bready,Steady,go for Muffet-

[@ok-yv9dd]

And underwater prom queens for Undyne

[@watdaheel]

@@ok-yv9dd why do you have to remind me slime girls-

[@thegenderofkel]

@@watdaheel undyne but slime girl /threat

[@FiensZy]

@@ok-yv9dd fish girl

[@arctohru]

I swear, every Earthbound-Inspired game will sooner or later be fused into a huge mega-game and it'll have the most banging soundtrack in this dimension

[@krisgeno8049]

OFF Bounds: Under The Dreams of Lisa Nikki

[@Ramsey276one]

CosmBound: The Painful Amalgamated Tale of (N) RPGs

[@surrealsweets8741]

Tale of Lisa and the Bound Omori: An Odd RPG

[@evelyntheidiot6]

toby fox better be on that goddamn soundtrack somewhere. p sure he's a cryptid

[@fantasyshadows3207]

With a Hallowrune DLC

[@christianthomas8069]

Chaos assembly gives mettaton’s Quiz a very sinister vibe

[@flowersandcheesecake1710]

Well I mean it’s a quiz, and a quiz we didn’t prepare for

[@urban_rural1256]

@@flowersandcheesecake1710 the scariest kind of quiz there is.

[@StafkiGTN]

@@urban_rural1256 ...A POP QUIZ!!!

[@drrenwtfrick]

@@StafkiGTN A

[@pluviocore]

mud

[@xSophchii]

Funny how literally everyone associates Omori with Undertale now It's like one of the few games that has Undertale's level of awesomeness

[@rareoats]

And I see your pfp is a mix of the rwo

[@xSophchii]

@@rareoats Oh hAHA TRUE- (Except the goat is Ralsei from Deltarune not Azzy but I get your point 😂)

[@treesimp6686]

imagine if you combined omori, oneshot, and undertale best rpg + with the most banger soundtrack

[@mihael64]

And it has more emotional trauma!

[@incognitorea5915]

@@treesimp6686 3 of my most favourite games

[@unrodmell]

The way the song fits with the asriel fight and makes it totally different from what it is makes me uncomfortable

[@gareb3ar17]

I think it gives the fight a more emotional fight.

[@unrodmell]

@@gareb3ar17 yeah, the music in that Omori fight is there too make it more emotional and creppy, and it stresses me tbh lmao

[@Toastedletoast]

It Means Everything can probably make any boss fight more sad

[@gabrote42]

Or more angry

[@pacifistichuman82649]

asriel

[@ravmycupine7190]

YOO HOLY SHIT I GOT GOOSEBUMPS WHEN TORIEL CAME IN WITH THE IT MEANS EVERYTHING OST THIS IS SO GOOD

[@DerioYT]

Me too, during the video editing ahaha

[@ravmycupine7190]

@@DerioYT We all cryin tonight

[@Femmyc]

Me when Aubrey fight-

[@JoofAnna_Alt13]

6:45 the way the dings sync with the music is 👌

[@reiva2009]

Yeah I also enjoyed that

[@theREALsilviautism]

undyne be turning this into a rythm game faster than you think

[@watdaheel]

@@theREALsilviautism Undyne Night Funkin' or und!

[@normalidiot4507]

@@watdaheel ...

[@watdaheel]

@@normalidiot4507 i meant OmG fRidAy fnKuin ReffFerEnCe??!!1!1₺

[@znoopsy]

crazy how omori was so much more joyful than undertale, yet had a much, much more sinister story

[@jas8288]

Even the names matching is amazing... "it means everything" for toriel, "underwater prom queens" for undyne is funny, "bready steady go" for muffet... "you were wrong. go back" for mettaton ex, "goldenvengeance" for asgore.. crazy.

[@ICNHH]

If u think abt it tee hee time also matches with Photoshop flowey

[@1971taks]

Underwater prom queens would fit better if undyne had a longer intro

[@corndogskele6947]

I misread prom and had to read it thrice

[@pacifistichuman82649]

don’t forget OMORI/ALTER for Asriel… man

[@leedlelel2373]

I think "valour against all odds" wouldve worked for undyne on SO many levels, both title and music

[@Rustcat666]

"Tee hee time" on Omega Flowey fits sooo muuuuuch

[@miguelcrafter2997]

Truueee

[@Maxwell-TF]

18:19 the timing is phenomenal lmao "oh _shit"_

[@Thy_Punishment_Is_OOF]

Sans be like: did you try to hit me? it's time to activate the start of the banger.

[@rach-cv552]

@Spamton G Spamton™ ikr smh

[@pacifistichuman82649]

"He’s only gonna do that once right?" *miss* _"oh shit"_

[@rahalmulet1220]

here is a wish, that needs fulfillment Omocat and Toby Fox Collab

[@realies4185]

I mean, Toby Fox made the 'Merry' Track in Omori for the Jukebox

[@arctohru]

OMORI gains a side dungeon that uses the Undertale Mercy/Talk function and uses the bullet hell system with EMOTION instead of the usual Attack/Skill system Undertale with a side area that adds the EMOTION system and skills from OMORI

[@johnsonbaroncaveler6634]

@@arctohru what dungeon?

[@abdulaisiyoup3912]

@@johnsonbaroncaveler6634 they were just suggesting an idea, not actually in the game

[@johnsonbaroncaveler6634]

@@abdulaisiyoup3912 ah i see

[@alexhoreic6573]

I think the OMORI ost would fit genocide undyne's battle a lot more than asriel.

[@Clloy]

I could try make that if you'd like

[@DerGecko92_old]

@@Clloy yay

[@reintempest2552]

I agree with Alex 110%

[@cameliascripet8792]

But what about Sprout Mole the Undying (Sir Maximus)?

[@SonicntZane]

no

[@mrboerger1620]

God tussle among trees fits anything

[@taylorwilliams2880]

Yes

[@itsoracle]

tussle among trees at a funeral

[@amnotmichael]

@@itsoracle he said anything

[@DerGecko92_old]

@@itsoracle yes

[@thegenderofkel]

tussle among stairs

[@minoridrinksbubbletea3527]

Ngl when i first hear Tee-hee time i absolutely give me "Your worst nightmares" vibes! Really well done, all tracks fits very well

[@DerioYT]

Thank you very much

[@Femmyc]

If you heard it in the context of the actual game- be a f r a I d that boss scared the living hell out of me

[@northstar1727]

Someone on a comment section of the Tee-hee time OST said this: Perfectheart's theme is like a holy version of Your best Nightmare Edit: The video on it was titled "Perfectheart's theme not the actual Omocat OST video"

[@Aquald]

Asgore + Pluto's theme = Perfection

[@fishylove1821]

That one was the most perfect pick imo

[@Aquald]

@@fishylove1821 Indeed

[@chartbox6497]

Imo not really, i mean it fits the intro perfectly but the whole vibe of the fight...

[@bloodyidit4506]

Somehow OMORI's final boss theme fits Asriel.

[@FrostyWhite]

World's end valentine fits so well. and it's in both the Hardest and the best fights in video games.

[@phillippebienponce4825]

*cries in perfectheart*

[@mgr9092]

Perfectheart: *_"Are you really sure...?"_*

[@Den-rc7uf]

*perfectheart, space ex-husband, humphrey, pluto expanded, slime girls and others exist*

[@mgr9092]

@@Den-rc7uf lmao

[@roohni2226]

No way is sweetheart hard lol

[@frisolaxod3835]

god the Asriel fight with OMORI makes so much sense even with the drastic change in music. It makes you feel much more like you're fighting for your life rather than knowing that, no matter what you'll win. I guess it's two different perspectives to such fight. And it makes sense that it gives that feeling. After all, in OMORI, Sunny was fighting whether he lived with the truth or died with the lie

[@Se--Se]

Imagine Sans going "do you wanna have a tee hee time?"

[@miguelcrafter2997]

I would go lmao mode

[@aislandofseaweed5231]

Ok, but imagine this the other way around though? Like, imagine how different the Omori fight would feel with hopes and dreams playing, or Aubrey's fight in the church having heartache.

[@ey-lol]

when the ost omori starts beatboxing when you are fighting some frickin magic rainbow goat

[@XericIsNotMyName]

i just realized the human's name is Omori

[@seantaggart7382]

Well there's two names Irl is sunny Dream is omori

[@vincentiuschristianardana6456]

@@seantaggart7382 it's called head space

[@seantaggart7382]

@@vincentiuschristianardana6456 k

[@yousuck6869]

@@Gegcoin fake verification

[@yousuck6869]

@@Gegcoin but you have 448 ok suuuuure

[@moovatb7808]

It means everything and goldenvengeance are a perfect hit

[@rbxq]

It’s almost as if teehee time was made for flowey

[@macky2890]

I did not expect for you to add Fleur and honestly, it's one of my favorite tracks in the game. I was overjoyed seeing it placed at such a fitting moment engulfed of confusion and fear. Great job!

[@DerioYT]

Thank you!

[@NicoTheCinderace]

Personally, I would've put "You Cannot Go Back" for Sans. After all, He represents the final barrier before finishing the Genocide Route and irreversibly tainting your save file forever - Selling your SOUL, and not being able to go back to how it was before. But it also has a double meaning in the case of the Genocide Route for the "Player"/Chara. You can't just turn around now - not when you've come so far. Thus, *You Cannot Go Back.*

[@DerioYT]

Nice idea, thanks :)

[@ahorribleterribleperson]

In my opinion the OST OMORI/OMORI ALTER should be in the Sans Boss fight.

[@_Tzer]

reminder that toby fox made a song for omori

[@younggamer7218]

Merry cd

[@younggamer7218]

@ige yes

[@jerryqueer]

@ige I think it was more than one idk lol

[@fygygufyufyyfhchcxgxy4290]

Fun fact:washuwa was inspired by OMOCAT. You can see it at the credits of the true pacifist route.

[@younggamer7218]

@@fygygufyufyyfhchcxgxy4290 makes sense

[@josiahball7799]

Oh my WORD, OMORI fits so well with the Asriel fight

[@bettycreepersayuri-chan809]

Bready, Steady, Go for Muffet is perfect And It Means Everything for Toriel is truly heartbreaking. I was on the verge of crying...

[@rust5427]

omega flowey's entrance is so perfect!

[@Apparently_I_am_everywhere]

Dude, It means everything over Heartache is literally the saddest thing. It fits extremely well.

[@Rene_Edens]

Why does this fit 😳

[@TR_Arial]

Asriel's fight really went from "hopes and dreams" To "hopeless dreaming " With a change of theme

[@user-dl3jn3lu3r]

6:46 WHAT A SICK SYNC

[@miguelcrafter2997]

THAT IS WHAT IM SAYING

[@pinkbluesapphire]

Its amazing how much the music can completely change the tone of a game

[@rozelica2152]

Asriel part really hit me different with the song

[@fuuroakaflowwy]

Next, omori boss fight with undertale soundtrack (Nah jk)

[@esteovo7910]

Yes Yes

[@justacringymakotoyukifangi8825]

Yes please Yes please

[@arandomcrusader8822]

No

[@NeonBlueLight]

Eh, sounds like a joke but it could work. People somehow made OFF work with Undertale so why not?

[@Stormimi]

@flowwy Might work, who knows. Also I like your profile picture, what is it from?

[@Raf8347]

how the hell you made Asriel's boss fight somewhat feel more heartbreaking...

[@sand2067]

WHY IS NOBODY TALKING ABOUT ASGORE AND GOLDEN VENGEANCE FITTING SO WELL?!?!?!!?

[@irisblink]

I CAN'T BELIEVE YOU PUT THE OMORI BOSS FIGHT MUSIC AS THE ASRIEL BOSS FIGHT MUSIC WH

[@jennafallin3514]

imagine accidentally clicking on this and then watching it without actually reading the title so then during the first fight about halfway through it you realize that the songs sound a lot like the omori ost and have to re-read the title to actually understand what’s going on

[@zipperooni]

This is so suspiciously specific I’m convinced this is exactly what you did

[@KaterinaSaburova]

Omg it means everithing with Toriel almost scared me

[@krisanolaras]

I'm so used to hearing the aggressive intro of Spear of Justice that it feels so weird when such a quiet intro played in the beginning of Undyne's usually-aggresive battle 😭😂 Edit: Also, I just thought about it now that personally, I feel like Valor Against All Odds would be more fitting for Undyne's battle IMO. The rhythm and entire structure of both songs are so similar to one another, I feel like it would be perfect. Plus, both Undyne and the Sir Maximus Lineage are guards, so... it works! Just an opinion of mine.

[@gabrote42]

If this video covered more of the game, this would be an argument for By Your Side = Fallen Down

[@wrathkills666]

asgore with goldenvengeance as a theme hits different and i like it

[@piesnthighs123]

music fits so well that I forgot what the original sounds like✨✨

[@DerioYT]

Thank you

[@whispypuffs4670]

To be honest, the OMORI boss theme really changes my view on the asriel boss. It feels...hopeless. which makes sense. You're fighting a god that's determined to keep you here and win against you again and again and again... It's like you can't win at all. Which is funny because you really can't win OMORIS battle. You can just play the final duet. It's really fitting.

[@elisabethvictoria5324]

i saw this. clicked it. the ruins music reached my ears. i immediately passed out from nostalgia

[@DerGecko92_old]

Oh No! Are you okay?😯

[@mellow4356]

It Means Everything really fits toriels fight

[@Yonaseen]

OMG Goldenvengeance was synced perfectly with Asgore's fight

[@m3gAm37aLmAnX]

18:02 *** *Y o u ' r e g o n n a h a v e a s w e e t t i m e . . .*

[@GengUpinIpin]

I like how "Its the end" give different vibe because of different music

[@CoolerShrimp]

It all fits so crazily well. Maybe its because Omocat and Toby Fox have been working together. I wish theres an easy way to mod the game to every Undertale Soundtrack is replaced with the Omori Soundtrack

[@IStoleAllYourCookies]

I really can't wait for a Undertale and OMORI mashup

[@Searonix]

so many of these fit so goddamn well, but hearing "OMORI" for Asriel especially fucked me up

[@nanami.chiaki]

Why is no one talk about that they put "those who forget history" to Papyrus's fight? It's so fitting and adorable, imo.

[@majorghoul9017]

It means everything for Toriel's fight is oddly perfect

[@adventurerwithacoolhat2531]

Undyne definitely starts out more mysterious. Napstablook gets justice Toriel was MADE for “it means everything” Let’s face it, Papyrus was also built for that as well. Chaos assembly definitely adds more pressure. Muffet’s fight gets the vibe it deserves with that theme. Mettaton stop dancing and FIGHT ME. Asgore definitely feels more intense. Omega flowey deserved that intro and that theme. Period. Amalgamates felt the same. That should have been Asriel’s theme from the start. World’s end Valentine is our megalovania.

[@helloeveryone4192]

Mettaton EX would be fit in OST Splintered Sweets in The Castle.

[@cartoonfan6171]

It's amazing how changing the music can completely change the feeling of a fight

[@theguypersonthing]

You dug up papyrus on the 5th floor of dinos dig

[@DanTheMan7777]

World's End Valentine is the true *Omorilovania.*

[@picklehat1455]

i love how in some cases the music completely fits to the battle and makes the fight far more emotional, it even makes each context have impact on the fight toriel - a heartbroken mother takes a final stand to stop her child from leaving reaper bird - a fight against a sick being that was malformed due to experiments going wrong and is now in endless pain, unable to die, unable to return to it's family asriel - your friends are all gone, the universe is falling, you can't win against this ungodly monster that you are now facing, *you might as well give up and disappear*

[@kailikwoh498]

I am fond of the editing you did for the Asgore and Photoshop Flowey fights. The buildups were neatly placed, given the right amount of silence to punctuate the start of the fight, and the full melody hits when it is ON.

[@charmygamer]

The Asriel boss fight really fits.

[@hugalabugala2893]

Holy shjt these actually fit so good

[@user-xj9qc1lx1s]

I love how I knew you would use world’s end valentine for sans

[@thegenderofkel]

THIS IS SO ACCURATE I ADORE THIS update: this has caused me to draw mettaton doing the spaceboy pose

[@giygaswashere2808]

That Golden Revenge transition for Asgore was smoooooth 🤌 Omega Flowey is even better. Amazing job. I just wish Battle against a true hero would have been present as well

[@sicklymoonlight]

Hopes and Dreams - Frisk to Asriel: "You are what's stopping me from achieving my goals." OMORI(-ALTER) - Frisk to Asriel: "You are the reason this all happened in the first place. EVERYONE'S SUFFERING IS ALL YOUR FAULT."

[@coollemonshark5601]

The greater dog fight music just makes it more wholesome, I love it

[@LuigiSantoriniXXX16]

Omori for Asriel makes me feel totally different! It fits so well!

[@Ahsoka_Hyrule]

I absolutely LOVE the edits you made to the Asgore and Flowey fights so the music would sync better, like it was actually part of the game. Perfection.

[@DerioYT]

Thank you!

[@rreapercat]

IS NO ONE GOING TO TALK ABOUT THE ASGORE FIGHT THAT WAS SO ON POINT, WHAT-

[@doodlehobbo8697]

The Reaper Bird part with Fluer was perfect tho.

[@efra_archived]

Es increíble lo poderoso que es el soundtrack en un videojuego, a tal punto de poder cambiar totalmente la admosfera y sentimientos que quiere dar un videojuego...

[@isaac-im2iq]

CAN WE GET A FULL VERSION FOR ASRIEL AND METTATON? PRETTY PLEASEEEE

[@thesuccinsuccess]

DUDE THE WAY UNDERWATER PROM QUEENS SYNCED PERFECTLY WITH UNDYNE ATTACKS WAS INSANE

[@ambiguouscomedian3858]

I love the complete irony of the Angel Choir singing as Omega Flowey's silhouette emerges.

[@CoreLain]

"omori" really sounds good in asriels fight

[@eway44]

Now we need Omori boss fights with Undertale music

[@rachelisverycoo]

I love how simply changing the music can change the vibe of the whole fight.

[@thorgidogofthunder]

why was OMORI perfect for the asriel fight? the narration, the actions "hope" and "dream", knowing asriel is trying to keep you "playing forever", and the whole "tragic twist villain" thing...

[@Nier2J]

This probably was hard to choose between Tee-Hee Time and Underwater Prom Queens for Flowey's battle. These two fits well.

[@theincursion5898]

the asriel fight actually feels like the sake of your entire timeline is at risk now holy shit

[@lizzieva1646]

GOD WHY DOES WORLDS END BAD TIME FIT SO WELL WITH SANS

[@radn_]

These fit so good, toriel and asriel fight feel more heartbreaking than they are with these songs 😭 Though I personally think that maybe The vengeance of those forgotten in darkness could fit sans fight better. Some parts of World's end valentine feel too snobby (i guess?) to fit the vibe.

[@blehpz]

16:09 MY GOD THE SADDEST BOSS FIGHT IN OMORI EVER

[@FZone96Official]

You nailed Mettaton with CHAOS ASSEMBLY

[@MsEdnisa]

the fight with toriel with it means everything oh my god it makes it so much more heartbreaking AND SAME THING WITH ASRIEL FIGHT PLEASE ITS SO MUCH MORE PAINFUL I JUST

[@judgmentalanimal]

Wow... the entire vibe of the Asriel fight has changed

[@aquaabouttogetfunky]

Ok I need a mod that just swaps the game's music- because both game's songs really fit one another-

[@3Y3ce]

This is my new hyperfixation