UNDERSWAP SANS

Undertale TS!Underswap Fangame Update. We finally get to meet Underswap Sans and Underswap Papyrus. Merg Gameplay Playthrough with commentary and reactions.
Game by TeamSwitched
gamejolt.com/games/tsunderswa...
Undertale by Toby Fox
TS Underswap Playlist
• TS Underswap
#merg #undertale #undertalefangame #underswap
All footage and music used belong to their respective owners. Allowance is made for fair use for purposes such as criticism, commentary, news reporting, teaching, scholarship, and research.
Thanks for reading. :) nyeh heh her er er er

[@StanleyG23]

The "Alive...?" is pretty obviously a joke because Papyrus is a skeleton, and, you know, if something is a skeleton, it's usually dead.

[@lukasvolkert5252]

Wait, usually?

[@mical1625]

​@@lukasvolkert5252 did he stutter?

[@PikachuGaming1612]

​@@lukasvolkert5252i mean, do sans and papyrus look dead?

[@zidebo5849]

@@PikachuGaming1612yes.

[@WowPlushieSansCool]

USUALLY!?!?

[@pandoratheclay]

5:59 “alive…?” Well, skeletons and living don’t typically have a lot in common

[@kingstonlovely7404]

Wonder what the geno run says about him (don't you fucking dare spoil it)

[@MertZz1]

​@@kingstonlovely7404 same thing

[@aichaamara392]

Man Sans would be so proud

[@IhaveNoactualName]

Pretty sure that the reason why Papyrus's status is 'Alive...?' is because he's a skeleton....and usually skeletons aren't alive.

[@coopalooper1688]

13:33 *Merg not knowing if Sans and Crossbones are the same person fills you with Determination

[@felipovisk972]

I cringe in pain when Merg does that.

[@BreadBanks5490]

Drains you of determination*

[@JezElectroAlt]

I sometimes wonder if he's doing it as a comment bait and to make videos longer.

[@samandom8772]

To be fair, maybe he's thinking of deltatraveler, where there are multiple sanses dimension hopping.

[@christopherc3339]

Are they the same person??

[@lowrngy]

I swear it’s legally obligated for an Undertale fangame to have Sans wielding a gun

[@ToyFreddyGaming1987]

Or a sword... or a weapon of any kind.

[@Rubentemira]

@@ToyFreddyGaming1987yep

[@abominationLlama]

Oh boy do i have something for you to see: Undertale sudden changes (-ps the theme is actualy good)

[@26godsans9]

@@ToyFreddyGaming1987 And mostly a bone

[@Torotheforevervirgin]

ahemmmmmm sudden changes

[@problempixel-ian2663]

If Merg doesn't know who's sans the skeleton and who's sans underswap, than be sure he'll mess up the names of Harry and Larry.

[@smartieking-gw1qv]

I wish we could’ve been his servant longer :(

[@smartieking-gw1qv]

Koffin k’s servant

[@problempixel-ian2663]

@@smartieking-gw1qv true. Anything for the count.

[@problempixel-ian2663]

True. Anything for the Count.

[@bananza-the-banana]

​@@smartieking-gw1qvhe's so worth it.

[@matttale7918]

At first I thought the Crossbones text sound was very off, but then I realized sans was literally just putting on a super hero voice and he starts speaking normally. Kind of like in MTT resort in Undertale when he has a different sound to show he’s putting on a voice for Toriel

[@redactedoktor]

:0 !!!!!! wow

[@revivesyourgolder3130]

ive just noticed that the human souls also got swapped, because the omega flowey fight in undertale we know that most of the items we find in the ground belong to the fallen humans 9:24 the "danted pan" (obviously a frying pan) belongs to the green soul and previously in the ruins there was the cowboy hat and the toy gun which belonged to the yellow soul in undertale these items were found in hotland/near the core, thats actually such a nice detail tbh

[@Merg]

I wonder if at the end of genocide, instead of we'll be greeted by a 😑

[@dragondude7107]

The stick is gonna be the most powerful weapon lmao

[@greenhydra10]

@@Merg Well, assuming that =) is Chara's smile, then, if any face is used, it's very likely we'll get hit with a -_- .

[@illYT-tt2vm]

Clover skilled issued in the ruins 😢😢😢😢😢😢😭😭😭😭😭

[@concernedlego897]

Does that mean that we’re gonna get two knives in a row

[@roseboil7713]

the reason why there's 'two sanses' is because crossbones has a secret identity. he pitches up his voice and junk to 'hide' his identity. he changes in and out of costume and blips in and out by teleporting, i'm assuming.

[@humanbeing301]

Everyone knows that famous vigilante Crossbones has a “secret identity” we just need to find out who that is

[@mehmeterciyas6844]

​@@humanbeing301maybe papyrus?

[@humanbeing301]

@@mehmeterciyas6844 no we see crossbones and Papyrus in the same room, unless Papyrus used his engineering skills to build a robot double?

[@TheLateLordKardok]

Merg is living proof that nobody would ever find out Bruce Wayne is Batman.

[@OnzieReeves]

I love the fact that Merg isnt "OH MY GOD TS UNDERSWAP FINALLY UPDATED AFTER SO LONG!" No, no, hes like "Welcome back to TS Underswap, it has updated. Lets play it."

[@impossiblegame335]

Patience. An important virtue for Undertale fangame enjoyers.

[@michaelsbasement]

I hate the fact that Merg isnt "OH MY GOD TS UNDERSWAP FINALLY UPDATED AFTER SO LONG!" And, hes like "Welcome back to TS Underswap, it has updated. Lets play it." But on a serious note, is it be illegal to be excited for something?

[@mariotheundying]

@@impossiblegame335 and for the whole fandom in general, Deltarune and fangames really trained us

[@greenhydra10]

It's really weird seeing the equivalent of Snowdin be... not snowed in.

[@cloudyjolt_gamer6491]

I see what you did there

[@fa-mr9xi]

Thats because the areas swap If it was actually snow the spiders woudnt be living there

[@NumberFifteen15]

@@fa-mr9xi yeah I think snowdin swapped with waterfall if I had to take a guess.

[@_epiphany5621.]

@@NumberFifteen15No, the areas are just entirely different. Ruins - Ruined Home Snowdin - Starlight Isles Waterfall - Crystal Springs Hotland - Boreal Bluffs Core - The NEXUS New Home - The City of New

[@flipflop_bell]

​@@_epiphany5621.the city of new is the name ever

[@szymix6417]

Merg: im leaving *sees temmie* Merg: IM NOT LEAVING

[@dokkback850]

I mean, I haven't seen both Crossbones and SwapSans in the same place. Is that a coincidence? I think NOT!

[@keegandaurity304]

You know it's a good fangame when Merg constantly has to ask if each character is dumb

[@drayalgo]

What’s cool about this game is that it has a unique neutral route for aborted genocide. Spare Asgore at the end of ruins geno and see what happens

[@akfbqoabepajsoa]

Makes sense Since Asgore alredy warned the rest of the undeground to evacuate Pretty neat idea

[@TheSenkMan]

I love the idea of Sans and crossbones being like a Superman and Clark Kent situation

[@Riley_Sanford]

wouldn’t it be better fit to be Bruce Wayne and Batman

[@sheogorath6834]

@@Riley_Sanford No, because it's obvious (but somehow most people in-universe misses it lmao) that Crossbones is Sans. (Like Superman and Clark Kent)

[@Riley_Sanford]

@@sheogorath6834 pretty obvious that a billionaire is Batman, narrow that down to who’s jaw looks like that, run facial recognition, and voila. Anyone who works for GCPD, Star Labs, etc, can know who he is.

[@sheogorath6834]

@@Riley_Sanford But that's not as obvious as Superman, he litterally only remove his glasses lmao.

[@felipovisk972]

​@@sheogorath6834fr. But literally Crossbones is either Papyrus or that guy called "Sans" (It's definitely not sans, just... look at him. He sells hotdogs 😐) Since they are the only skeletons in town 🤷. However, Papyrus has already been seen with Crossbones, so I think discovering Crossbones' identity will be difficult... 🤔

[@capn_toad]

yoooo can't believe you played our game! as a game dev this is super exciting to see! glad you liked it :)

[@zian01000]

Banger game

[@capn_toad]

@@zian01000 happy to hear it!

[@ugurkaanyesil8417]

Will TS swap papyrus somehow be harder than crossbones sans?

[@capn_toad]

@@ugurkaanyesil8417 no spoilers!

[@ugurkaanyesil8417]

@@capn_toad Also,will the sans fight get balanced? because rn, Its just TOO hard for a snowdin boss.

[@iljoker4697]

I like that in addition to the pacifist, neutral, genocide, there is even the neutral evacuated.

[@randomsomeone7771]

So, aborted genocide then. Where you spare Asgore only?

[@iljoker4697]

@@randomsomeone7771yeah,practically asgore even if spared he warned all the monsters outside, so even if asgore was spared, many will think that chara is still in genocide, and the city (not ruined city, the other) it will all be evacuated and even the royal guards and the bomb guy will think that you are in genocide, only papyrus and and a angry sans will understand that you stopped the genocide, and there will be a Different sans fight from the one in Genocide, where he won't be in his hero costume and will say different things...

[@zian01000]

​@@iljoker4697no we know why it took to long in development

[@iljoker4697]

@@zian01000 two years for a big area is not so long honesty, and for all the ways you can do.

[@TheSimargal]

I love TS!Underswap with my whole heart and this demo v2 made me really happy! It's so nice knowing the team is still working on this project and is trying to push it out . Also I get huge Deltatravler and Undertale Yellow vibes from this! (And hot take normal spirtes are better than the colored sprites)

[@doge614]

Merg never dissapoints

[@reinybongos1953]

Please shut up and come up with an original comment, please 🙏

[@buffwagon]

indeed he doesn't

[@seandorama5932]

Merg is always cooking 🔥🔥🔥🔥

[@ericcarvalhoferreira512]

He does at times.

[@deewhitefay_]

Frrr

[@EpicSans3]

Man Watching Merg After Such A Long Time Really Cheered Me Up :D

[@Merg]

[@EpicSans3]

@@Merg Wow- i didnt Expect You to Reply This litteraly made my day tbh :D

[@justaguy9215]

It's time to TS underswap the roles, cool video by the way

[@fygygufyufyyfhchcxgxy4290]

I have never seen terraria calamity before, but, uh... I didn't expect it to look like this. All jokes aside, I'm excited to see more TS! Underswap and can't wait to see what's terraria calamity like!

[@justinmacpherson8244]

??? He did terraria calamity a long time ago...? Just look at his older videos

[@fygygufyufyyfhchcxgxy4290]

@justinmacpherson8244 Well, I haven't seen them yet and since merg is already about to play trough the mod I'm just going to wait for the new vids.

[@SnesNESS-ic6gn]

RIP rainworld

[@aaamogusthespiderever2566]

@@SnesNESS-ic6gnrip slugcatos

[@aaamogusthespiderever2566]

@@justinmacpherson8244he did a recent post asking what game he should do for a vid next and terraria calamity won

[@EzraTilahun]

I love how unlike in Underswap, the characters in TS!Underswap switch roles but keep their personalities. This makes the plot feel more original because it’s not just the same thing but with the character looking different.

[@Pandead-qy6dy]

Hype! Ts!Underswap updated, can’t wait to see it!

[@TheEpilougeAsylum]

Cool update! I can’t wait to see the rest of it. I do wonder what the secret door is for though. I hope it’s something interesting! anyways very cool Merg :)

[@zwnjj]

merg being confused over crossbones and the ever so mysterious skeleton is funny af lol, i took it as chara not being able to tell they're the same since they're a child

[@salesman1997]

WOWIE!!! [[Update Java]] FROM TS!UNDERSWAP, AMAZING [[Big Shot]] VIDEO AS ALWAYS!

[@Lunarcreeper]

15:57 PORTALLLL!!

[@dorukefeuyuturen2320]

Merg deceived us posting about terraria calamity and hit us with another amazing undertale fangame

[@Jordibobo]

Merg trying to get everyone's number was certainly one of the moments of all time

[@problempixel-ian2663]

Flowey: walk at an angle. Just that simple. Merg: Can I have your number bro?

[@FeenieVonKarma]

so.. I'm guessing the only swap in this universe is Chara instead of Frisk? (and I guess Asgore at the start). This game is really lovely but I'm curious to see what else is swapped other than these things. oh, yeah. and temmie. terrifying little gremlin. nvm I just remembered this is "ts!underswap" which I assume is a bit different. I'm still really enjoying it, but Sans and Papyrus being very similar to their regular selves surprised me at first!

[@Merg]

Apparently it's Underswap but none of the personalities are different, only their roles. So for example Papyrus is probably gonna be the one following you on your journey (and judging you?), but will still be very eccentric.

[@hollowbeings]

The creator must really like Portal , the fast goop and companion cube are definitely inspired by those games XD

[@Anored.]

17:39 It 's sans dance but funny version

[@Garfuneral]

IVE BEEN WAITING FOR THIS UPDATE!!

[@everost2374]

I'm surprised Merg got a video out less than 24 hours after release

[@Luwis1337]

2:32 DAMN YOU STARLO!

[@Monochr_ome]

the thing making Ts unique is that the swapped characters do keep some of their original personality unlike other swap AUs where the personalities get swapped aswell most of the time

[@ashlynn1732]

FINALLY IVE BEEN WAITING FOR MERG TO PLA7 THIS FOR SO LONG (actually 1 day)

[@TvCat-HiNoPlaytime]

"Tar -Tar sauce" That made me laugh!

[@JezElectroAlt]

Great video. I am only 7,5 minutes in, and also it's Merg video, so it's great already.

[@hackedaccount026]

this year and December 2023 gone crazy! so many fun fan games are updated, we are getting something new :D

[@CoinClever]

You know it's something when it gets past the ruins.

[@user-so9kq6om2s]

I like how the team just decided to give sans a gun. like, ok sure.

[@aerostepping1887]

I saw this uploaded and immediately told myself that I had to check out the video it had to be amazing Time to watch it >:D

[@soro08]

Were probaply the best 2 episodes ive seen and this is gonna be even better

[@ItsSuper_]

Hey merg in four days its my birthday (and opposite day) so I can kinda look at this video as an early birthday gift, thanks for being the best youtuber!

[@emanym464]

13:37 "Sans-i," the plural of Sans. Used for when there is more than one Sans

[@philipp04]

5:12 This trait seems to be one that most games in general share. My favorite game of all time is Deus Ex, an immersive sim from the year 2000, and I've noticed this there as well: even if you're the hero that's gonna change the history of the entire planet, you can still play like a criminal by breaking into private property and stealing everything you can find, and the game kinda encourages it. At least by hacking computers and reading emails you gather intelligence, but hacking an ATM is different, it's as if James Bond sabotaged a vending machine so that he can steal 20 bucks from it 8:50 ok this is kinda confusing. Mitosis..? 20:06 So am I bro 24:17 You sure that it's not a meme game? whatever's been happening for the previous 5 minutes suggests otherwise 26:07 I only recently found out that on railway traffic lights, blue is indeed a signal to stop moving (at least where I live, the blue signal appears on small traffic lights next to railroad switches, and it means that "maneuver movement" is forbidden). Fun fact 26:32 no it doesn't lmao 28:01 Pretty sure that those are cannon shells my man 31:20 the first thing you think of is "can I steal"... 33:30 in the CORE straight up "wingin it". and by "it", haha, well. let's just say. my ding (gaster smiling face) 35:50 I've always viewed Heats Flamesman as a child and you give him this seductive voice wtf man 37:11 ah yes cause the first thing you do with a resume is you eat it 42:46 I see you're eager to do a genocide run mate

[@seandorama5932]

Who doesn't eat resumes???

[@LUKAS_DA_DUDE]

Nice Video as always

[@mrbored5521]

It has been a long time finally it's back

[@betzyellow]

yay 0:29 i love the stars too, specially the lo's 👀 5:56 they remember they're genocides 13:42 "he's bruce wayne or smth" 15:36 i don't know if this was really funny for no reason or if i'm just happy to be here but im laughing so much 16:27 the "are you dumb" was so out of place 😭 18:05 "goodbye sans bozo ☺️" 23:44 for some reason temmie actually scares the fuck out of me in this fangame and i find her genuinely creepy 24:33 "💀rest in piece you two ☺️hello" 24:53 "thank. god." 28:51 "💀and now we kill you ☺️oh and now we can pet you" 30:46 "we're child, we're innocent and happy" says literally 3 seconds after plotting genocide 37:18 it doesn't really appear in your quests if you don't interact twice either lol i was curious and used it in a battle and it affected the stats of the opponent (i kms afterwards because it's actually consumable-) 38:55 ceroba? 🥺 43:05 i mean at least you're notifying it cool new emotes btw

[@Mateo-vz4fl]

Hey Merg! I dont know if you've heard of it, but A Space for the Unbound is a narrative pixel-art game with a very beautiful and emotional story and I would love to see you play it and bring attention to it! Hope you see this comment!

[@1nst4ntN00dl3s]

On the last rock puzzle, you can line the rock up against where the pink stuff is and do a murder dance against it to gain speed faster.

[@The-coolest-bone]

So glad that *merge* is playing more very epic fan games

[@The-coolest-bone]

Krispy Kreme is making new doughnuts again!!?!?!

[@guacolea]

ITS HERE ITS FINALLY HERREEEE

[@dudeman1925]

Great video As always, TS is a great fangame and its pretty cool. Speaking of fangames, Will you do bonetale again? they released 1.5.2 and 1.6

[@NBLT-rk6lp]

11:01 So likes... "Sailor Moon"? "...Fighting Evils by Moonlight, Winning Loves by Daylight..."

[@ObjectIsCool]

OH MY GOD! and i just finished watching the other underswap videos!!

[@TheStudioArchitect]

This is really cool! One thing I especially like about this is that it feels super mystical and magical. The original Undertale was cool, but it never really had the magical and mystical elements until Waterfall and even then only at Waterfall. This fangame is worth a play! :D

[@HaunterK1ng]

Funny how sans changes his voices when he uses crossbones costume

[@nobody7204]

I like how confused merg is throughout the entirety of the video

[@Lanceranddeltarunestuff]

Did somebody call…MEeEe????

[@oyuntakvimi125]

2:45 ts!underswap is basically roles are swappped but they (almost) keep same personalities in undertale, like sans is in the role of papyrus but still acts like sans

[@ZuRtIS_cUrTiS]

I wonder if we’re gonna get a ts!deltaswap ever

[@OverOmni]

After the funni TS under swap are you gonna do Calamity? Just wondering sense I've internally been wanting you to play Calamity.

[@Andytheanimatorpro]

Whooo this is great

[@cdkcooks7240]

im glad he posted rn

[@pelle5028]

Merg Upload letsgoooooooooo

[@alialshkri7384]

Something Different in This Underswap you see All Sans Personality is The Nearly The Same As The Original And Papyrus As Well And The Blue Stop Sign is Still The Same That Makes The Game More Interesting , Amazing Video By The Way ❤

[@-bartdoesart1196]

Really excited for this

[@sageful1200]

ayyy im ACTUALLY the first…..love your vids merg keep it up

[@Burnt1.]

oh finally this game got updated, i always liked ts swap

[@youtuberjestforfun9074]

I like how he did not know if crossbones should have a sans voice or a papyrus voice even know it keeps the same personality just swapped roles

[@FeenieVonKarma]

7:40 Barking up the wrong tree, perhaps??

[@riolucoolshaoyo7296]

Papyrus gave you the running boots cause since normally the demo 2 gave you that after the sewers, you get it cause you loaded a demo 1 save file

[@ZanPelleGrino]

yo merg! Could you do another pokemon video? I really enjoy those videos and find them very calm!👍🍒

[@frostplays155]

oooh this is still getting updated

[@YuckydaWucky]

I was so excited for the update

[@Luoogi]

23:00 popple vibes from Mario and Luigi superstar saga lol

[@azamzahid6626]

43:28 i think this is suppose to open after you dodge the credits like in undertale where you dodge the credits and get to the secret place

[@legendaryratbell]

16:19 was that a TESIV: Oblivion reference???

[@Blazing_Bean]

When i first saw "Crossbones" i thought it meant that one Amalgamation of Sans and Papyrus

[@hshdthemovie]

thats sixbones

[@smoldog1232]

@@hshdthemovieI think he meant the other one where they didn’t turn into an abomination

[@Buff_Helpy]

This whole thing is one long fever dream

[@haleqq]

28:50 Finally, and now we KILL-

[@neoslayerpw8230]

they should add this to playlist

[@duckinapancake]

LETS GO MERGGGGG FINALLY

[@edwardgamer9319]

Bro thought crossbones was going to shoot papyrus 😂😂😂 18:52

[@WellWagonStudios]

If there's an underswap section of Deltatraveler it could be Deltatraveler sans

[@getthedunkon9347]

23:38 That defeats the purpose of being a vigilante.

[@leonelzubieta8636]

Merg the next day: Time for my daily no hit

[@superkaiser11]

Nice video

[@user-gr8kv1zb4q]

merg: OMG I THOUGHT FOR A SECOND AND HE WAS GOING SHOT PAPYRUS

[@Youkuri]

You might want to continue donating to the spider bakery, something good might happen

[@Kelswagsinandballin]

If Merg, then never failed to gives us jolly and determination!

[@considermurema9277]

Yay new vid

[@DanlolX]

sans is everywhere! as a hero, as a lazy-bones... and as a bee? 33:38

[@MisterBananaVr]

Im excited for this!!!!

[@mgxzero]

Good video !

[@KysaanJohnson]

Yes it here