(Under Construction)
open/close all folders
Major Characters
The Human/Chara
The Human/"Chara"
- Adorably Precocious Child: They have a dry and sometimes sassy running commentary, take notes in their journal on the monsters they encounter along with illustrating the monsters with crayon drawings, and their sprite has open eyes but a neutral expression like Frisk's, giving them an earnest, serious look at all times, even when sitting on a bench and childishly swinging their legs back and forth. It gets extra adorable if you equip the Cowboy Hat that Chara is under the impression makes them "look tough", since they wear it in the overworld too and make a point of carefully taking it off for naps and putting it back on when it gets knocked off their head.
- Ambiguous Gender: As in Undertale, their gender is never specified.
- Amnesiac Hero: You choose their name at the beginning because they can't remember it after their fall. They also mention not remembering the Surface if you have them nap again before battling Asgore (or after fleeing his battle).
- And I Must Scream: They really want to just stay with Asgore in the Pacifist route, but some force is compelling them to leave. When they battle Asgore (who thinks they want to leave), they never get a chance to speak up about it, even when they try. It happens in the Ruthless route also, where when asked by Papyrus why they kill people one of the dialogue options is "I don't want to anymore.", but selecting it changes the response to "Because".
- Cloudcuckoolander: Possibly. They can do some pretty odd ACTs with monsters (like Frisk), stack a glass of water and minimart items on top of their head instead of carrying them in their hands, and the Mad Dummy hears them mumbling their check of them if you choose to Check the Mad Dummy instead of saying goodbye in the tutorial, which could mean Chara is saying all their narration out loud under their breath.
- Corrupt the Cutie: Seems to be the case, influenced by LV and being under the control of the player in Ruthless.Checking the mirror: Never felt better.
- Dark and Troubled Past: Implied. If you take a second nap after pushing Asgore on how to leave Ruined Home, Chara's inner monologue mentions that they feel terrified at the thought of returning to the Surface, though they can't remember why. Implied further in Demo 2.0, when they stargaze and start remembering that they came to Mt. Ebott for an unhappy reason.
- Demonic Possession:
- Chara's dialogue options in Neutral and Pacifist show they want to stay with Asgore and are confused and scared when the dialogue keeps changing to them pressing him on how to leave the Ruins, with them trying to plead for help by the end. Regardless of whatever the possessing entity's intentions are, it's clear that Chara is frightened all the same.
- This may be happening in Ruthless as well. Chara's face becomes shadowed like Kris' when we are controlling them, and this
response on Tumblr indicates that the team sees the player as responsible for Ruthless, not Frisk. Since we are now controlling Chara, they may also be controlled by the player in-universe for Ruthless.
- Does Not Like Spam: According to the TS!Underswap tumblr, Chara hates white chocolate.Asked by tramon81: "To chara: regarding chocolate. Do you prefer eating chocolate bars or food containing chocolate (cake, donuts, cookies, etc...)?"Chara: Who am I to complain? Either way, it's chocolate. As long as it isn't the dreaded, deceptive, and deceitful "white chocolate..." ...Which, mind you, isn't even chocolate! Just a mockery. A farce. It's an insult to chocolate. ACTUAL chocolate.
- Evil Costume Switch: When Count Koffin-K recruits them to be his SPOOKY SERVANT, he has them instantaneously transformed to be wearing one of three possible miniature versions of his own outfit to show it. Amusingly, for one of the outfits (an old version of the Count's that is too long on them and drags on the ground), Chara even breaks from their default neutral expression with an over-the-top grumpy/pouty "angry face" to go with their new "villain" role. Less amusingly, in Ruthless where they have become evil, they don't get the hilarious and adorable "Evil" Costume Switch, because Count Koffin-K realizes he's too freaked out by how genuinely spooky they are, and bails on them.
- First-Person Smartass: Team Switched uses the Narrator Chara theory from Undertalenote , but keeps Chara as the narrator for the game despite Frisk taking their place. As in the original game, Chara can get very snarky in their narration.
- Hello, [Insert Name Here]: We still get the opportunity to name Chara despite the role swap, and this time around it's a straight example because now they're unambiguously our player character. Like Undertale, the game has some special responses to certain names. Here's a list.
- Heroic Mime: Zigzagged. On one hand, we don't get to hear them directly respond to monsters talking to them, making all conversations with them appear one-sided and employing the classic Repeating So the Audience Can Hear trick used at times with Frisk in Undertale, but they still get plenty more lines than anyone else and get to showcase their personality throughout the game, as they provide all of the game's narration and are Addressing the Player (or someone).
- Hidden Eyes: Once you're firmly set on a Ruthless Run, Chara's sprite will change, causing their eyes to be covered in shadows (similar to Kris). Aborting it and making it snap back to an Evacuation Neutral run makes their eyes reappear but their face remains shadowed, giving them a haunted look reminiscent of a Thousand-Yard Stare.
- Kidnapped by the Call: Happens to Chara in the Pacifist route, with them forced by a force controlling them to leave a happy life with Asgore in the Ruins.
- Nightmare Fuel Coloring Book: They make a point of making cute, silly drawings of every monster they meet in their journal in a childish hand, and even go so far as to color them in, giving monsters like Asgore, Sans, and Papyrus goofy poses and big cartoony smiles. This is still true in Ruthless, except Chara now draws red Xs over the faces of the murdered monsters and notate which ones they've "eradicated" in addition to the cute colorful drawings. Is that... almost cute? Just sad? Just plain disturbing?
- Not So Above It All: They seem to fall for Crossbones' Paper-Thin Disguise and even with the big whopping hints seem to fail to connect him to Sans when they meet him, given that the "two" have two different entries in their journal and no hint in their journal or narration that they suspect anything. In Ruthless though it's pretty obvious to the player that he's switched himself out with a cardboard cutout and escaped from their killing blow alive, Crossbones is still noted as "eradicated" in their journal. Semi-justified since, well, they are just a kid fallen into a world of magic, monsters, superheroes, and supervillains.
- For how vicious they get in Ruthless, Sans tells them an increasingly outlandish, comic book style backstory for himself, then makes fun of them for apparently falling for it (smugly saying they looked like they were "into it" when he reveals it was all just bait). They also seem to get very huffy and frustrated from his neverending taunts and in general "laughing at" them.
- Also, while on the Ruthless route, they take a moment to take a selfie of themselves for no reason other than a memento.
- Player Character: Due to the nature of Underswap, you control them instead of Frisk. As they also get to stay the narrator, their personality gets more focus and their struggle with whatever is controlling them (possibly the player themself) gets promoted to a running plotline in TS!Underswap.
- Ripple-Effect-Proof Memory: Downplayed. Similar to Frisk dying to Toriel in Undertale, they'll remember if they were killed by Asgore in his fight and had to load, but decide it's too complicated to explain to him. However, they don't appear to have as strong a memory when it comes to resets the way the Temmies and Flowey do, allowing you to reset and try other routes without Chara commenting on it. This also follows canon: while Flowey remembers and comments in detail on what you did in previous runs unless you erase his memory by killing him in Genocide or obliging his request in Pacifist, Frisk as the Player Character only demonstrated occasional moments of implicitly remembering loads or resets (like the aforementioned Toriel fight or looking bored by a repeat of Mettaton's "musical") and forgot True Resets entirely, the narrator in all routes (including Genocide Chara) only occasionally demonstrated knowledge of loads (like suggesting they skip ahead to pressing the button on Mettaton to activate his EX form or trying to distract Monster Kid at the start of a reloaded Undyne the Undying fight), and it's left very much unclear what post-Genocide Chara remembered of resets (as they also stick to saying and doing the same things without any variation, same as the narrator, and make no effort to change things up during gameplay; even their dialogue and actions in the second Genocide ending and the Soulless Pacifist endings will repeat those ad infinitum no matter how many times you replay them, in contrast to Flowey constantly changing up his dialogue, calling you out on making him repeat himself, and only forgetting from hard wipes).note It's justified a little more here by Chara waking up with amnesia at the start of each run, presumably making their memories of past runs a little scrambled too.
- Trademark Favorite Food: Chocolate, as confirmed by the devs on their Tumblr. They even have a chocolate bar with them when they fall into the Underground, which gives them an extra healing item right off the bat, and has them happily comment on the taste if you use it.
- Woobie, Destroyer of Worlds: In Ruthless, as this go-around it's shown explicitly how they're a lovable little kid and want to be a family with Asgore, but in Ruthless are forced to kill and become cruel, hated, and feared by everyone they meet, with the bosses in particular giving them "The Reason You Suck" Speech and beating the holy hell out of them. If you nap at the hotel in the the Starlight Isles section, they have a bad dream remembering... something from their past and have a Villainous Breakdown, repeating "Leave me alone" over and over again. It's hard not to pity them, as they're still just a scared, upset child.
Temmie
Temmie
- Adaptational Villainy: Went from a silly but harmless monster to a sadistic, soulless creature. It comes with the territory of taking Flowey's role, really.
- Always Chaotic Evil: Temmie isn't just an individual—they're a species, just like in Undertale. However, these ones all seem to be soulless.
- Ambiguous Gender: While the Temmies in Undertale seemed to be entirely female (except for Bob), it's left ambiguous here.
- Big Bad Duumvirate: Initially it seems like Temmie themself is going to be the Big Bad, but it turns out that there's at least seven of them after Chara's SOUL.
- Bitch in Sheep's Clothing: Acts like their ditzy Undertale counterpart, but are a soul seeking monster.
- Creepily Long Arms: Temmie's extending arms are now much thicker and are tipped with sharp claws, giving them this appearance.
- Cute Is Evil: Don't let their adorable appearance and ditzy facade fool you, this pernicious plushie is just as twisted as Flowey.
- Deadpan Snarker: They can be quite sarcastic when they show their true colors.Temmie (after you touch their attack): Oh, come on. Don't look so surprised. What did you THINK was going to happen?
- Emerging from the Shadows: Temmie's friends are introduced this way. Their glowing eyes and teeth appear in the shadowed parts of the room, one at a time, and then they slowly begin to close in on you. Strangely, even when they step into the light, they're still covered by shadows. Three of the new ones appear uncovered later in the game but the remaining three have not yet been seen out of the dark. Also, you can sometimes see a Temmie in their monster forms still covered in darkness if you backtrack on certain screens.
- Evil Laugh: They have their own spin on Flowey's iconic laugh, which sounds much more raspy and even more distorted.
- Faux Affably Evil: Temmie likes to mess around by playing cute and dumb, but they're just waiting for the perfect time to drop the act and take your SOUL.
- Horrifying the Horror: When Ruthless Chara makes it clear that they have no desire for a partnership, all but the un-shadowed Temmie retreats, who doesn't think that Chara's that bad. Had it not been for Flowey popping up, they might have regretted those words.
- In Love with Your Carnage: The Temmies are absolutely delighted by a Ruthless Chara and will offer them their assistance. Unfortunately for the Temmies, it becomes apparent that their help isn't wanted or needed...
- Killer Teddy Bear: One of Flowey's lines of dialogue ("None of your concern, plushie!") implies that Temmie is a living plush toy, like in most depictions of Underswap.
- Leitmotif: "Fuzzy Friend", a remix of "Tem Shop" in the style of "Your Best Friend" (with some melodies from the real Temmie Chang's Escaped Chasm thrown in for good measure).
- Nightmare Face: Temmie follows in Flowey's footsteps by busting out a few of these, complete with evil cackling.
- Obfuscating Stupidity: They act as dizty and silly as their Undertale counterpart to lure victims into a false sense of complacency.
- Painting the Medium: When they're putting on a mask of silliness, they use the same incorrect spelling and grammar as they did in Undertale. Their true personality uses normal speech.
- Ripple-Effect-Proof Memory: Temmie (and their cohorts, by extension) remembers what you did on previous runs, counts the number of times you were killed, and will comment on it if you reset to talk to them again. They are also aware that Flowey remembers.
- Rubber Man: The first time they try to kill Chara, their arms and hands grow to a massive size to hold Chara's SOUL in place.
- Seven Deadly Sins: As of the second update to the demo, the Temmies have updated designs and dialogue/personalities to match this theming. Their leader is dressed in a suit and believes they are better than their underlings and is the only reason anything gets done (Pride), one wears a red shirt and a black leather jacket and just wants to kill Chara ASAP on a Pacifist/Neutral Route and encourages Chara to embrace their rage and kill everyone in a Genocide Route (Wrath), one is constantly sleepy, always resting on a pillow, wears pajamas and a nightcap, and suggests take a nap in Genocide Route (Sloth), the one dressed the same as the shopkeeper within the original Undertale tried to take Chara's soul for themselves with their elongated arms (Greed), one of the unrevealed Temmies have hearts for eyes (Lust?) and another has a huge jaw in their monster form and wonders what souls tastes like (Gluttony), and one other unrevealed Temmie enjoys the quiet in a Genocide Route (Envy?).
- The Soulless: Being this universe's equivalent of Flowey, Temmie doesn't have a SOUL, which means they can't feel compassion. The same applies to all the other Temmies as well.
- Stalker without a Crush: Temmie is shown to be following Chara throughout the whole game, just like Flowey in Undertale. However, rather than briefly being shown burrowing into the ground if you backtrack, they instead appear in other ways (such as hiding inside cracks in the walls and floating down rivers in their box). They can also briefly appear at the edge of the screen if you backtrack in certain rooms, only to flee when Chara gets near. In the Ruthless route, three of them appear to watch Chara while they sleep if they rest at the abandoned inn in Starstruck Village, only to be chased off by Flowey.
- There Is Another: It turns out the Temmie you met at the beginning of the game isn't the only one. Reach the end of Ruined Home, and you'll find out that there are six more. And all of them are just as bloodthirsty as the first one. And they're all working together.
- Voice Grunting: When they're putting on their ditzy facade, they have the same pitch-shifting chattering noises that they had in Undertale. However, once they drop the act, it plays at a consistent pitch like every other character. They also have a much deeper, demonic voice byte that they use when they put on their Game Face.
- Walking Spoiler: Not Temmie themself, but the other Temmies' existence is a huge reveal at the end of Ruined Home.
Asgore
Asgore Dreemurr
- Adaptational Badass: In Ruthless, Asgore puts up a much better fight in the TS!Underswap demo than either Toriel or Asgore did against the player character in Undertale's Genocide, despite both player characters being about the same LV. Especially impressive since he is physically older than his counterparts from passing his life-energy onto Asriel.
- Adaptational Heroism: Asgore makes a genuine effort to kill Chara and stop them from killing his people in Ruthless, whereas both Toriel and Asgore in Undertale's Genocide were mowed down in one hit without realizing how dangerous the player character was until it was too late.
- Age Lift: Since Asriel is alive, Asgore (and Toriel) have continued to age. Asgore now wears a pair of glasses for his worsening eyesight.
- Badass Cape: He wears his old ceremonial cape from Undertale when you reach his house, and continues to wear it during his boss fight. According to him, it's to commemorate the day when a great tragedy befell him (which, if you know Undertale, shouldn't be that hard to figure out.)
- Beware the Nice Ones: Even though he's a warm, fatherly goat man, he'll still fight you near the end of Ruined Home to keep the other monsters from getting your SOUL. He also won't hesitate to kill you on a Ruthless run, with stronger attacks to boot.
- Big Good: In the demo. He is a leader to the Ruined Home monsters even without an official position, Temmie and the Mad Dummy are both afraid of messing with Chara more directly if he's around them and resort to waiting until he's not around to help, and he does everything in his power to stop Chara if you go Ruthless, being by far the most difficult challenge in the game thus far.
- Big Damn Heroes: He accidentally saves you from Temmie's wrath at the start of the game, with them being forced to flee when they hear him coming. Should you decide to fight the first Froggit in the Scripted Battle, he'll take the attack.
- Cool Old Guy: He's now an older boss monster wearing glasses and a little ponytail, due to Asriel being alive. He plays guitar as a hobby, is Loved by All among the monsters, and is a really gentle and sweet guy who just wants to take care of Chara. He is also still very much a badass.
- Dark and Troubled Past: Carries the burden of knowing the six human children he tried to care for and ultimately allowed past him were killed by monsters in the rest of the Underground. He also says that he lost everything in one day and has spent years trying and failing to atone for his mistakes; if his past is similar to Undertale Asgore's, he lost two children in one day and has been separated from his wife because of it for a very long time.
- Dramatic Irony: If you finish his battle peacefully, he will let you leave Ruined Home, thinking that it's what Chara wants. Little does he know that staying is what Chara wants, and that we're forcing them to leave.
- Heartbroken Badass: It's heavily implied that he tries baking butterscotch pies because he misses Toriel. He mentions her name in melancholy blue text and with a sad smile, suggesting he's still carrying a torch for her despite whatever happened between them.
- Heroic BSoD: Asgore is just completely speechless and shocked if you abort a Ruthless run by sparing him. note He will just kneel on the ground in complete silence. If you leave and come back, he will lock himself in his home and refuse to talk to you.Asgore: ... ... Why? I-I don't... I... c-can't...
- Last Ditch Move: In Ruthless only. Just before he runs out of health, he will perform a final, super-difficult-to-dodge attack—first he performs a rapid series of jabs with his trident, then he slams it into the ground to create giant rings of fireballs.
- Leitmotif: "Rise, Child", a "Fallen Down"-styled remix of "Bergentrückung", plays in most of his appearances. His battle theme, "SOUL Ablaze", is a remix of "ASGORE" and "Heartache".
- Loved by All: All the monsters in the City of Old seem to love him. It's easy to see why.
- Nice Guy: He has a very jovial and kind personality. Even should you betrayal-kill him at the end of his boss fight, Asgore will be momentarily shocked before blaming himself for making you fight, apologizing before turning to dust.
- Nightmare Face: He makes a pretty terrifying face during his final attack on a Ruthless run, as a reference to one of Toby Fox's original concepts.
- Parental Substitute: He tries to be this to Chara for their stay in the Underground, just like Toriel did in Undertale. The tragedy of it all is that Chara wants to stay with him—but the player has other plans.
- Playing with Fire: As usual, he mainly uses fire magic to fight. He has a few new moves at his disposal, too, like creating spinning fire bars and summoning fire pillars.
- "Reason You Suck" Speech: If killed in a Ruthless run, he tells Chara will be alone in their "special hell" when they're done killing everyone.
- Retired Badass: He's the former King of the Monsters, and still has some pretty impressive fighting prowess in him.
- Taking the Bullet: Should you choose to attack the Froggit during the Scripted Battle, Asgore will jump in to take the blow. He takes very little damage from the attack.
- Team Dad: Asgore is this to all the other monsters in the City of Old, who talk about him in glowing terms. Judging from the graffiti NPC's comments and the phone call you can make to him about the Greasers, he also seems to have a hand in keeping the younger monsters on the straight and narrow. Bugerpant lampshades this trope, saying he's like everyone's dad and telling Chara to be good to him. And of course, he also tries to take you in when you reach his home, and even has Chara's approval (at least until we force them to leave).
- "The Reason You Suck" Speech: Gives one of these to Chara at the end of a Ruthless fight, saying they'll be alone in their special hell.
- Willfully Weak: It's pretty obvious that Asgore is holding back when you fight him, since he doesn't really want to hurt you. Should you decide to do Ruthless, he'll stop holding back.
- You Remind Me of X: Asgore comments on a spark of adventure and curiosity in Chara's eyes, starting to say it reminds him of someone before trailing off. Since he compared the hope in Frisk's eyes to Chara's in Undertale, he's likely thinking of Frisk here.
Mad Dummy
Mad Dummy
- Ambiguous Gender: Since they're a ghost inhabiting a dummy, their gender is currently undefined. To be subverted when Mad Mew Mew eventually will make an appearance.
- Ascended Extra: Rather than just showing up for one fight as they did in Undertale, the Mad Dummy is a prolonged antagonist that chases Chara around.
- Dirty Coward: Knowing that they can't take Chara with Asgore besides them, they cause a ruckus in Ruined Home just to get them separated.
- Epic Fail: When they try to attack Chara with a knife, they miss the Battle Board completely. It's also implied that them destroying Ruined Home's bridge was yet another failed attempt at trying to attack Chara.
- Foreshadowing: Their Check description in the tutorial fight labels their defense as "YES", hinting that this isn't the Mad Dummy's cousin, but in fact the Mad Dummy themself.
- Hair-Trigger Temper: No matter what you do in the training segment, they'll always find some way to get pissed off at you. Even if you choose not to do the tutorial, they'll bust through the door to yell at you for ignoring them.
- Jerkass: They attack Chara no matter what they do during the tutorial, and even cause trouble for other monsters offscreen just to get Chara alone to attack them.
- Large Ham: With their hot-headed personality and constant furious rants, they definitely qualify.
- Laughing Mad: They laugh maniacally all throughout their chase sequence.
- Leitmotif: "Enter! A Furious Foe!", a slow-paced remix of "Dummy!", which is further remixed in "Dummy Chase!" when running away from them in the sewers.
- Recurring Boss: Downplayed. We haven't actually fought them yet (unless you count the tutorial), but they reappear to chase Chara through the Ruins and will likely show up for another fight in the full game since they haven't settled the score by the time Chara leaves the Ruins.
- The Rival: Proclaims themself to be this to Chara at the end of their first encounter.
- Sitcom Archnemesis: The Mad Dummy acts this way with Chara, hamming it up about how despicable Chara is and attacking them regardless of what they do in the training segment.
- Stalker without a Crush: They become obsessed with getting "revenge" on Chara by the end of the training segment, scheme to attack them at the Ruined Home bridge and sewer, and when that also fails they vow that We Will Meet Again. On top of that, repeat examinations of the guitar in Asgore's house reveals that the Mad Dummy has possessed it and they get steamed with Chara AGAIN for wasting Mad Dummy's time checking it when they're trying to stalk Chara.Mad Dummy: I WILL FOLLOW YOU TO THE ENDS OF THE EARTH!!! I WILL SEARCH EVERY NOOK AND CRANNY!!! I WILL REMAIN AWAKE PAST MY CURFEW!!! UNTIL I FINALLY HAVE MY REVENGE!!!
- Verbal Tic: Retains their usual tic of repeating words three times.
- Voice Grunting: A deep growling sound byte.
- We Will Meet Again: When Chara shuts the door in the sewer to keep Mad Dummy from pursuing them further, Mad Dummy declares they'll be back.
Mettalot
Mettalot
- Adaptational Backstory Change: In Undertale, Mettaton was the biggest celebrity in the Underground after obtaining a robot body. Here, he's still a ghost, and is pretty obscure outside of Ruined Home.
- Adaptation Name Change: Because he doesn't have a robot body here, Mettaton is known as Mettalot.
- Agent Peacock: He may be very flamboyant and campy, but Mettalot is the last mini-boss of Ruined Home, meaning he's considerably more challenging than the previous ones. It's downplayed in a normal run since he's not really trying to kill you, but played straight on the Ruthless Route where he tries holding you off so the other monsters can escape.
- Bedsheet Ghost: He's still in his ghost monster body in this game. He still manages to stand out as flashy as ever with his pink-and-yellow coloring, styled hair, and floating gloves.
- Combat Sadomasochist: Just like in Undertale, if you hit him, he'll make an... interesting face similar to what's seen in the original game and moan out "Yeah!" using the exact same voice clip.
- Faking the Dead: You can "kill" Mettalot, but it's blatantly obvious from what we know from the original game and what a show Mettalot puts on as he does it that it's just an act. In a neutral run, he'll even tell you that ghosts are immune to your attacks, but in a Ruthless run, the journal will list him as dead even though he faded away rather than dusted, and you didn't gain any EXP from it, implying that Chara believes they really killed him.
- Final-Exam Boss: A really bizarre example as he's fought very early in the game, but he can use attacks from any of the regular monsters seen in Ruined Home. He does this by throwing a curtain over the Bullet Board, casting a spell on it, then pulling the curtain away.
- Heart Beat-Down: Another attack of his is to make a heart symbol with his hands, firing hearts at you.
- Large Ham: Well, of course! It's Mettaton! His battle revolves around performing a dramatic romance to a crowd, with scenery-chewing abound. He even gives a "DRAMATIC PAUSE!" right before you can spare him.
- Leitmotif: "A Spectacular Specter!", a jazzy version of "It's Showtime!", plays during his shows. His battle music is "Stage Fright", which remixes "Metal Crusher" and "Death By Glamour".
- Milking the Giant Cow: Unlike most other enemies, Mettalot has a unique animation for every one of his attacks. Appropriate, considering he's a showman.
- Musical Assassin: One of his attacks is to summon smaller versions of himself, which sing musical note projectiles.
- In Touch with His Feminine Side: Much like the original Mettaton. Along with a very feminine appearance, Mettalot's attacks include such things as hearts, sparkles, and singing.
- Pretty Boy: Basically the ghost monster equivelent, with his long hair, noticeable eyelashes, and flamboyant mannerisms.
- Produce Pelting: If you heckle Mettalot, the audience will start throwing vegetables at you. This is treated as an attack, and is one of the harder ones in the game to avoid.
- Voice Grunting: His voice bytes seem to be sampled from the word "Baby!".
Bugerpant
Bugerpant
- Adaptation Name Change: His name went from "Burgerpants" to "Bugerpant".note
- Adaptational Nice Guy: He's still quite cynical and he still resents his job as a Burger Fool, but he's a bit more optimistic than his Undertale counterpart and acts much calmer and more polite at his job. It's probably because he met Flara, who honestly cares about helping him with his problems.
- Art Shift: One of his facial expressions causes him to turn into an Animesque Bishōnen.
- Butt-Monkey: Even in an alternate universe and when under different management, Burgerpants still can't catch a break. He's getting picked on by Greasers because Aaxel thinks he has the hots for Flara, he has to fill in for the fry cook when he's sleeping on the job, when Mettalot features him on his show, it's only so he can get him a coffee, he's legally forced to say his name is "Bugerpant", and he's the single delivery boy in Grillby's Backyard Barbecue. No, not one location. The entire underground.
- Burger Fool: He's still stuck working at a fast food joint, this time as a delivery boy for Grillby. Unfortunately for him, he's also the only delivery boy in the entire chain, meaning he has to travel all over the Underground and work himself exhausted for no extra pay. There's also the fact that he's contractually obligated to say his name is Bugerpant.
- Gonk: It wouldn't be a version of Burgerpants without his Ren and Stimpy-style Deranged Animation.
- I Don't Want to Ruin Our Friendship: How he feels about his friendship with Flara; she's too good of a friend to lose from a proposal rejection.
- Leitmotif: "Chill By The Grill", a remix of "Rock Around the Clock" (a new track used for the Grillby's restaurant) in the style of "Hip Shop".
- Mythology Gag: One of his facial expressions is based on Handsome Lancer.
- Throw the Dog a Bone: While his life is still in a crappy position, his job at least allowed him to meet Flara, who genuinely cares about helping his acting career. You can also choose to buy his musical script to help him make a little extra money.
- Voice Grunting: A nasally, Squidward-esque drawl. Notably changes pitch with every line of dialogue, similar to his constantly changing facial expressions.
Spoiler Character
Flowey
- Adaptational Badass: Its Undertale counterpart is shown being easily knocked away by Toriel with a fireball, banks on getting SOULs to power himself up to god-like levels before he fights Frisk again, and dies without putting up a fight if you choose to kill him in Neutral or Genocide. In comparison, if Asgore is already dead, this Flowey can scare off the Big Bad Duumvirate itself by threatening them with a fight - that's seven Temmies it's willing to take on with only Chara as potential backup - and in Ruthless, it's the one who easily knocks away the attacking Temmie with a single friendliness pellet.
- Ambiguous Gender: Downplayed. Flowey was canonically male in Undertale as the reincarnation of Prince Asriel, and goes by he/him in the original game, but in TS!Underswap, it goes by it/its. It is worth noting that the two most popular fan theories for who this Flowey might really be, Monster Kid and Frisk, are both canonically gender-neutral in Undertale and TS!Underswap.
- Ambiguously Evil: Downplayed with Flowey in the demo because its motives in the game have yet to be revealed. It's made pretty clear it's still not a sweet and innocent flower even in this world, between it hinting that Chara will need to kill to survive, Temmie thinking it has put Chara up to their actions in Ruthless and admitting to envying it as a rival in that ending, and in Neutral not perturbed in the slightest if Chara betrayal-kills Asgore, or if they do the Ruthless route, still saying that Chara is like it and even admitting to being no better than the Temmies sometimes in one reset branch. Still, it chases the Temmies off before they can gang up on Chara when it didn't need to, makes no move to attack Chara and take their SOUL itself, and instead is set up as an ally to them and an enemy to the Temmies for the full game. Since its ultimate goals are unknown, it's not clear if Flowey is biding its time playing a longer con on Chara than its Undertale counterpart pulled on Frisk, or if it will be a sort of morally lax ally leaving the active villainy up to the Temmies.
- Big Damn Heroes: Two examples.
- It saves Chara from death when all the Temmies gang up on them at the end of Ruined Home.
- In Ruthless, it shows up right before a group of shadowed Temmies try to attack Chara while they sleep at the Inn.
- Decomposite Character: Asriel is alive and well in this world, but Flowey coexists with him. It seems to be an individual rather than a species like in most iterations of Underswap, so it's currently unknown if it's a regular monster or soulless like its Undertale counterpart.note
- The Dreaded: For some reason, the Temmies are afraid of it, even though there are seven of them and only one of it. No matter which route you are on, the Temmies will leave Chara alone once Flowey butts in.
- Leitmotif: "Your New Pal", a remix of "Your Best Friend".
- Ripple-Effect-Proof Memory: It retains its memories after you load a save file, just like the Temmies, and will comment on how many resets you've made when you encounter it on subsequent runs. The Temmies are aware that it remembers, and vice-versa.
- The Rival: To the Temmies, supposedly.
- Saying Too Much: In the Ruthless route, after Koffin-K decides he's too scared of Chara and gives up on making them his servant, Flowey says that Koffin-K would have them do his boring chores, despite it seemingly not knowing anything about him. Flowey quickly says to not question how it knows that.
- Smug Super: It can get pretty cocky and condescending, taunting the Temmies like its counterpart did with, well, (almost) everyone in Undertale, but may have gotten a dose of Adaptational Badass and appears to be stronger than at least the Temmies.
- Walking Spoiler: While Flowey being in the game isn't too much of a surprise ("Floweys" are in the original Underswap, taking the Temmies' place as a group of friendly but stupid monsters in Waterfall), the fact that it appears much earlier, acts a lot like its Undertale self, and will have a major role in the game is.
- You Don't Look Like You: It looks almost exactly like the original Flowey, except that its petals are pointed. Of course, since Asriel is still alive in this universe, it is (probably) not the same Flowey.
Sans
Sans/Crossbones
Click here to see Crossbones.
Normally a mild-mannered skeleton monster, Sans moonlights as a crime-fighting, human-hunting superhero named Crossbones. He's the final boss in Starlight Isles.
- Badass Cape: His Crossbones outfit features a blue cape, known as the "Bed Sheet of Justice".
- Clark Kenting: No one seems to realise that Sans and Crossbones are the same skeleton, despite Crossbones' mask not hiding much, and him occasionally slipping into his regular voice. Not even Koffin-K is able to put the pieces together when inside his Punishment Shack, much to Sans' slight disbelief.
- Early-Bird Cameo: He shows up on the cover of a comic in the City of Old, long before you properly meet him. He also appears at the end of the first demo during the preview of Stardust Woods.
- Faking the Dead: In the Ruthless route, he quickly swaps himself for a cardboard cutout of himself when you're about to kill him. Despite this, Chara, Papyrus and everyone else for that matter believe he's dead.
- Mythology Gag: The drawstrings on his hoodie are shaped like bones, a detail taken from
the official Fangamer Sans hoodie. - Ninja Log: In the Ruthless Route, he uses a cardboard cutout of himself to avert and fake his death at the last minute.
- O.O.C. Is Serious Business: Although the Pacifist and Neutral routes seem to portray him as not taking his life as a superhero seriously, the Ruthless Route shows that Sans is willing to step up and become the hero the Starlight Isles needs, ranging from helping monsters evacuate with the use of his shortcuts to saving Harry and Larry from Chara when they try to provoke them. To get across how serious he is, Crossbones drops the banter, jokes, and gets straight to the point, which gets the duo to understand the gravity of the situation and they immediately comply.
- Painting the Medium: As always, Sans' dialogue is written in the Comic Sans font, and in all lowercase letters.
- Play-Along Prisoner: Since he retains the teleportation powers of his Undertale counterpart, he could have escaped at any time while captured by Muffet, but only does so if you try to attack her when she's spareable. When Papyrus calls him out on this, he says he wanted to see if the situation could be resolved without his involvement, and it's implied that he was using it as a test to see what Chara would do.
- Punny Name: Sans still speaks in the Comic Sans font, which now doubles as a Stealth Pun due to his comic book theme. His superhero identity, Crossbones, is named after the famous skull-and-crossbones symbol.
- Secret Identity Vocal Shift: As Crossbones, his Voice Grunting sounds a bit more gruff, though he does sometimes drop it, usually when talking to Papyrus.
- Show Within a Show: Crossbones has his own comic book series in-universe, written by Asriel (under the pen name "A.S. Dreamer").
- Stealth Pun: This version of Sans is a comic book-style superhero. Comic Sans.
- Sour Supporter: Possibly Downplayed. In the Ruthless route, if you decide to reload without saving after defeating Crossbones, he shares a secret with you, that being he only ever tolerated your presence for the sake of others, no matter which route you've taken. It is unknown whether he genuinely means this, or if he's trying to get into Chara (and the player's) head, given the circumstances that lets you see this dialogue in the first place.Crossbones: eh. i might as well share a secret, while you're here.Crossbones: is it a key? a hidden room?Crossbones: you're thinking too small. this one's the daddy of all secrets.Crossbones: (in his normal voice) you listening?Crossbones: no matter what you do, or have ever done in the past...Crossbones: remember that i've only ever tolerated you for the sake of others.
- Superhero: He's now themed around Silver Age-era superheroes, complete with wacky gadgets and his own comic book series.
- Vigilante Man: He's not part of the Royal Navy and fights crime on his own.
Papyrus
Papyrus
- Early-Bird Cameo: He shows up at the end of the first demo during the preview of Stardust Woods.
- Gadgeteer Genius: He's the one who creates Crossbones' gadgets.
- Heroic B So D: Suffers a big one on the Ruthless route after believing his brother is dead.
- Mythology Gag: Despite wearing different clothing, they're still similar colors like in Undertale. His undershirt (gloves) are orange, his sneakers has orange highlights (boots), his hoodie is white and has cut off sleeves (chest armor), his hood is orange (cape), and his shorts are blue (hip bone armor).
- Oral Fixation: Rather than smoking a cigarette (like Papyrus does in normal Underswap), he carries a lollipop in his mouth.
- Painting the Medium: Like in Undertale, he speaks in the Papyrus font with ALL UPPERCASE LETTERS.
- Top-Heavy Guy: He somewhat had this appearance is Undertale, and TS!Underswap accentuates it by having his hoodie cover up his spine, giving him a bulky appearance.
Admiral Alphys
Admiral Alphys
- Early-Bird Cameo: She appears at the end of the second demo during the preview of Crystal Springs.
- Funetik Aksent: Alphys seems to have a French or German accent in the preview of Crystal Springs. However, it's confirmed to be an act when she drops the accent all together in her phone call with Sans in his boss fight during the Ruthless route.
Ruined Home Monsters
Froggit
Froggit
Ribbit.
Life seems to be rough for this enemy.- Adaptational Badass: Very downplayed. It's still the most basic enemy in the game, but it has a few more complex attacks than it did in Undertale.
- Awkward Kiss: You can kiss a Froggit in the middle of a battle. This has no effect on gameplay, but it will cause it to become visibly flustered.
- The Goomba: As usual, Froggit serves the role of being the game's most basic enemy, with a simple sparing method and easy-to-dodge attacks.
- Goomba Stomp: It now has the ability to try to jump on you, K. Round-style.
- Overly-Long Tongue: One of its new attacks is to catch flies at the bottom of the screen with its long tongue, hitting you if you're not careful.
- Scripted Battle: As in Undertale, there is a scripted encounter with a Froggit early in the game; this time, instead of scaring it off, Asgore simply tells it that Chara doesn't mean it any harm, and it backs off. If you decide to fight it, then Asgore will take the blow for the Froggit, and then advises Chara not to attack violently. The same Froggit appears as an NPC later on in the area.
Whimsun
Whimsun
I'm sorry...
This monster looks too frightened to fight.- Apologetic Attacker: Just like in Undertale, it really doesn't want to fight you.
- Harmless Villain: Extremely meek and pathetic, even for a first enemy. It's attacks can't even harm you if you don't move.
- Support Party Member: Probably the only threat it poses is if there are other enemies alongside it, as its attacks limit the space your SOUL can move in.
Loox
Loox
I've got my eye on you...
I can almost feel this monster's piercing stare.- Adaptation Personality Change: While the original version of Loox hates when people pick on him, this Loox seems to take insults pretty well.Chara: I tell Loox that the bag under his eye could hold at least 25G. He chuckles in response.
Loox: Ha! That's a good one! - Combination Attack: If there's a Vegetoid in the battle, he can take a bite out of it and spit the chunks at you. Also, a Vegetoid can take a bit of him to rain faster tears.
- Oculothorax: He's basically a sphere with arms, legs, horns, and one eye, bringing Mike Wazowski to mind.
- Pungeon Master: He brings plenty of eye-related puns to the table when you fight him."What are you looking at!?"
"I've got my eye on you..."
"I see, I see..." - Staring Contest: To spare him, you have to stare at him until he blinks.
- Swiss-Army Tears: Inverted—he can shoot tears to attack, similar to Napstablook.
Migosp
Migosp
Let's boogie all night!
A dedicated yes-man, perhaps due to bad circumstances.- Big Creepy-Crawlies: An insectoid monster.
- Dance Battler: Subverted. As in Undertale, Migosp will start dancing when it's the only enemy left, but its attacks probably won't hit you unless you run into them. However, there is also a version of this move that goes through the middle of the Bullet Board, which does require a dodge, although it's still very easy.
- Support Party Member: It only seems to appear alongside Loox, and will use its antenae to make his attacks home in on you.
- Yes-Man: Its CHECK text describes it as such, which is backed up by how it only attacks when there are other enemies.
The Ruined Knights
The Ruined Knights (Karapaes, Scutler, and Ballard)
The Ruined Knights attack!
Karapaes, Scutler, and Ballard: a ragtag team of self-proclaimed knights.- A Father to His Men: Scutler, the presumed leader of the knights, cares a lot about his partners. He can't be spared until he's the last knight remaining.
- Be Yourself: You can tell Ballard to be true to himself to make him spareable, assuring him that his friends will accept him for the way he is.
- Big Creepy-Crawlies: They appear to be Whimsuns wearing armor.
- Boisterous Bruiser: Karapaes is the loudest and jolliest member of the knights.
- Canon Foreigner: These guys weren't in the original Undertale.
- Evil Laugh: Karapaes lets one out with with pretty much every line he has, to the point of being a Verbal Tic. He can even use it as an attack!
- Hot-Blooded: Scutler is the most determined to beat you, and has the shortest temper.
- King Mook: To the Whimsuns.
- Leitmotif: "Thrashing Thorax", a trumpet melody used for their first appearance. Their battle theme, "Knights! Trouble Afoot!", is actually a remix of "Tuffer Upper!" (the game's normal battle theme), although it uses the same instruments as their regular theme.
- Orbiting Particle Shield: Ballard can attack by creating a shield of butterflies and then shooting them at you.
- The Stoic: Ballard shows very little emotion outwardly. It turns out this is because he doesn't want to fight you and is trying to hide his true feelings.
- Throwing Your Sword Always Works: Scutler carries a large sword with him, and he can throw it at you as an attack.
- True Companions: The team is inseperable, even after they fail to capture you. If you spare them, you'll later find them having a picnic in the City of Old. Additionally, if you kill any member of the team, the other knights will become un-spareable (and any previously spared knights will rejoin the battle).
- Scutler will remain unspareable until the other knights are spared. At this point, you can spare him by reminding him that his friends matter to them.
- Warm-Up Boss: They're the first boss battle in the game, so their attacks are the easiest to dodge. They're also used as an introduction to slowing down Chara's SOUL, a feature that was present in Undertale but never properly introduced.
- Wolfpack Boss: All three attack as a team.
Moldsmal
Moldsmal
Glub grubble!
Curvaceously attractive, but doesn't seem too bright.- Blob Monster: It looks like a living gelatin mold.
- Brainless Beauty: As in Undertale, Moldsmal is a parody of this trope.
- Spread Shot: Its main attack is to drop miniature Moldsmals, which split into even smaller Moldsmals.
Vegetoid
Vegetoid
The Secret Ingredient Will Shock You
High in fiber, farmed very locally.- Combat Tentacles: Vegetoid can now attack by sprouting vines on the top and bottom of the Bullet Board.
- Combination Attack: If there's a Loox in the battle, it can bite his arm to make him cry, raining teardrops on you.
- Edible Ammunition: They still use vegetables as projectiles. This time, they use the aforementioned Combat Tentacles to throw them into the air.
- Helpful Mook: Moreso than in Undertale. The "Eat Your Greens" strategy is still used to spare it, but now, it spawns multiple green vegetables, which all heal greater amounts. If you're low on health, encountering Vegetoid can easily be a good thing.
- Implausible Deniability: "Did You Know That Plants Can't Talk?"
- Painting the Medium: It follows the same speech patterns that it did in Undertale, meaning every word they speak starts with a capital letter, with little-to-no punctuation.
Syrose
Syrose
I have to tell EVERYONE about this!
This flower is packed with sass and brimming with beauty.- Bratty Teenage Daughter: She acts like a stereotypical teenage girl. You can find one of her parents in the City of Old, who mentions that she has a rebellious streak.
- Canon Foreigner: One of the earliest new regular enemies introduced in this game.
- Combination Attack: If there's a Vegetoid in the battle, she can move her hula hoop across the top of the Bullet Board while it drops vegetables.
- Gossipy Hens: Gossiping with Syrose is required to spare her.
- Mid-Battle Tea Break: According to the narration, she sometimes stops mid-battle to re-apply her lipstick or give you her phone number.
- Plant Mooks: A new enemy that looks like an anthropomorphic rose. Looks like Flowey isn't alone anymore...
- Projectile Kiss: Blowing kisses is one of the ways she can attack you.
- Rings of Death: She's quite proud of being a five-year hula hoop champion, and she can attack by throwing them at you.
- Weapons-Grade Vocabulary: She can gossip at you as an attack, causing words like "BLAH" and "TOTALLY" to fly towards you.
Butchy
Butchy
Let's hit the road!
She likes to go fast! To escape her responsibilities.- Badass Biker: Her main schtick. One of her attacks is to drive across the Bullet Board like a motorcycle, with headlights telegraphing where she'll be approaching. To end the battle peacefully, you have to make her drive so fast that she speeds out of the room.
- Butch Lesbian: While fighting her, she may sometimes wonder if her girlfriend is watching.
- Canon Foreigner: Another enemy made specifically for this game.
- Punny Name: She's a parody of the Butch Lesbian character type, hence the name.
The Greasers
The Greasers (Aaxel, Norman, and Moldrick)
The Greasers are ready to rumble!
Aaxel, Norman, and Moldrick: the hometown bullies of The City of Old.- Asshole Victim: After Aaxel's jacket is torn off and he allows you to spare him, you can make him give you his lunch money just to rub it in.
- Big Ol' Eyebrows: Moldrick seems to have these, but sparing him reveals that they're fake.
- The Bully: They all have a reputation for bullying the City's citizens. Their first appearance has them picking on Bugerpant. They've also pranked called him and thrown food at him, all due to the fact that Aaxel thinks Bugerpant is trying to make moves on Flara, whom he has a crush on.
- Canon Foreigner: Zigzagged a bit, as while the monster species of these enemies were previously seen in Undertale, they're completely new characters.
- Cool Shades: Aaxel wears these. He might even throw them at you to attack.
- Defeat by Modesty: To spare Aaxel, you need to have him flex his jacket off, ruining his "coolness".
- The Dragon: Norman to Aaxel.
- Good Old Fisticuffs: Aaxel can attack by punching.
- Greaser Delinquents: Well, duh.
- Jerkass: Aaxel, who goes out of his way to make Bugerpant's life hell for no reason other than believing that he's trying to make moves on Flara.
- King Mook: All of them are stronger versions of normal enemies—Moldrick is a Moldsmal, Norman is a Froggit, Whimsun, and Loox, and Aaxel is an Aaronnote .
- Leitmotif: "Slick and Stylish", a menacing electric guitar song that takes cues from "Vs. Susie" and "Killed By BR8K Spider!!!!!!!!". This gets remixed (along with "Rock Around The Clock") in their rock 'n' roll boss theme, "Ready To Rumble".
- Plot-Irrelevant Villain: Unlike the other bosses and mini-bosses, they're not blocking Chara's journey out of the Underground at all—they just want to pick on Bugerpant. Despite this, you still need to defeat them, as there is a wall of traffic cones that won't lower until you've dealt with them.
- Real Men Wear Pink: After Aaxel's jacket is destroyed, he switches it out for a pink flower shirt.
- Screw This, I'm Outta Here: They all decide to run away after you defeat them. Within the battle, they will also flee if you get their health down to zero, making them among the few enemies that you can't kill.
- Spread Shot: Inverted by Moldrick. He attacks by merging mini-Moldsmals into a larger Moldsmal, which then fires projectiles at you.
- Totem Pole Trench: Norman is quite obviously this. Specifically, he's a Froggit, a Whimsun, and a Loox, as foreshadowed by his attacks in battle. You can spare him by revealing this, making him run away, and his components can be talked to at Grillby's after.
Starlight Isles Monsters
Woodwork
Woodwork
A tree-like monster who likes to cackle.- Weapons-Grade Vocabulary: One of their attacks is their words of laughter descending through the battle box.
- When Trees Attack: Resembles a tree stump that tries to fight you.
Mordax
Mordax
A monster trying to have a normal fishing day.- Fishing for Sole: When you're not helping him to catch a fish, some of his attacks will involve him reeling in his line and fishing up a tyre.
- Fishing Minigame: To spare him, you have to watch the water, then get him to reel; you will then have to direct the line at one of the fish that jumps out of the water. It doesn't matter what you catch, he'll be happy enough to be spared after that.
Beenard
Beenard
A bee monster who's buzzing around. He needs help with a new name.- Unique Enemy: You only encounter him once in one room. In the Ruthless Route, he will be hiding, and if you don't go looking for him right away, the save points will say "That insect...", indicating that you have to kill him to continue the route.
Sunbrock
Sunbrock
A sun monster who loves to hang out.- Unique Enemy: He's only encountered once in a specific area, and isn't fought alone but with Woodwork and Mordax.
Harry & Larry
Harry & Larry
- Bumbling Henchmen Duo: They're not exactly the smartest of henchmen, easily falling for Papyrus' trick of making them think the Royal Navy is approaching, and getting into a fight with each other when Koffin-K tasks you with battling them, and they have a lot of funny moments. Despite this, Koffin-K does still value them.
- Bullying a Dragon: On a Ruthless run, they don't take Crossbones' warning that Chara is the killer human they need to be wary of, and start shaking them while talking about how they'll beat them up, angering the child enough to swing at them. It's only thanks to Crossbones getting them out of the way in time that a fight doesn't break out then and there.
- Disney Villain Death: In the optional Ruthless route boss, using brute force won't work as they'll keep healing each other when brought down to critical health. You must first lower Larry's HP down to just above his healing trigger to make him wobble, then use the "Push" ACT on him to make him fall over the edge.
- Get It Over With: Harry's response to you pushing Larry to his death on the Ruthless route.
- Hat of Flight: Their hats have helicopter blades in them, which come out whenever they want to fly.
- Optional Boss: Subverted in the Ruthless Route. Flowey frames it as if you don't need to go after them, but Chara considers it as a failure if you move on without encountering them.
- Verbal Tic: Harry sometimes ends his sentences with "See?"
Muffet
Muffet
But don't you worry, dearie~ I bet you'll taste better even better when I'm through with you~
A spider monster trying to sell in other places other than her bakery in Starlight Isles.- Adaptational Jerkass: She insults you more frequently after her fight, but this is just due to the fact that she was frustrated that her bakery hasn't been doing well and the two monstersnote that helped her get her bakery successful in the first place had abandoned her.
- Deadpan Snarker: Has a few shades of this during her hangout, especially if Chara chooses "ingredients" that aren't suited for cooking with.
- Defrosting Ice Queen: Is pretty cold and snippy towards Chara if talked to after the fight, but quickly warms up to them after a baking session lets her vent her frustrations from the above.
- In Spite of a Nail: Despite swapping with Grillby, who doesn't have a boss fight in the original "Undertale", you still battle her in Starlight Isles.
- Let No Crisis Go to Waste: In the Ruthless and Evacuation routes, she "saves" Lesser Dog and Greater Dog by having them tied up and out of your reach, planning to hand them over to the Royal Navy in the hope that they will reward her for keeping them safe from the murderous human.
- Well-Intentioned Extremist: She wants to raise enough money to help reunite the spider clans, but has questionable methods of doing so. In the Compassion and Neutral routes, she makes a deal with who is implied to be one of the Temmies to help them get Chara's SOUL in exchange for them letting her use their body for her pastries, which she believes will bring her the money she needs. She also has Papyrus and Crossbones tied up to stop them from intervening. There's also her actions in the Ruthless and Evacuation routes, where she captures Lesser Dog and Greater Dog, hoping that the Royal Navy will reward her for saving them from Chara's killing spree.
Koffin-K
Count Koffin-K
Why, of course I can... I'm Count Koffin-K!
A monster that claims to be a supervillain, who's the arch-nemesis of local superhero Crossbones.- Benevolent Boss: He provides a pretty great place to live for his minions, already has a new bed in place for his new "Spooky Servant" Chara (after he kidnaps them to work for him, that is), encourages teamwork between Harry and Larry, chats with Chara about what they see and allows them to wander around instead of head straight for the festival they're planning to crash, and is genuinely worried when Chara goes quiet after they stargaze together. He's trying to live up to the reputation of a wicked supervillain, but supervillainy is kinda just how he does friends.
- Evil Counterpart: Pompous, hilariously arrogant, sincerely kind beneath that, and really just wanting friends? Smells like Papyrus. No wonder Sans gets along with him so well.
- Evil Laugh: A pretty magnificent "MWAH-HA-HAAAA!" He can get into an Evil Laugh-off with a Woodwork over it.
- Failed a Spot Check: Does not understand that Sans (who he knows) is Crossbones (his Arch-Enemy), even when Sans is the one standing guard over him at the "punishment shack" and casually talking about being Crossbones. Even Sans is shocked by this. When he's about to tell him, he decides it's funnier to keep the Count in the dark.
- Friendly Enemy: To Crossbones. Their feud consists of Koffin-K trying to pull wins on Crossbones in whatever petty ways he can, and Crossbones being entirely amused by it and trouncing him, with no intent to actually hurt or kill on either side. He's also pretty friendly towards Chara despite making them his servant; if you go to the top of the mountain while he's accompanying them, he'll ask them if they're alright on the way back down.
- Heel–Face Turn: In the climax of his fight, after Chara says he can still express himself without causing trouble, he decides to stop being a Supervillain and start becoming a better person.
- Living Clothes: He's a sentient hat that seems to be able to animate other clothing if he rests on top of it.
- Poke the Poodle: What his "crimes" really amount to, being mostly pranks a mischievous little kid like Chara has little problems with doing when he prods them into it. He's thrilled each time he pulls it off. He's only got people after him because they're annoyed at having to keep cleaning up after him. When he breaks the Ferris Wheel and Crossbones scolds him for it, he acts less "supervillain committed property damage" and more "nervous kid realizing they're in trouble".
- Supervillain Lair: Koffin Keep is his supervillain lair, where him and his minions reside.
- The Unfought: In the Ruthless and Evactuation routes, he gives up on his plan to make Chara into his servant when he finds that he can't change their outfit, and realises that he's too scared of them. He leaves and closes the gate to Koffin Keep, and isn't seen for the rest of Starlight Isles unless you backtrack on the Evacuation route, where you still don't get to fight him.
Bertha Bloom
Bertha "Betty" Bloom
Aw, aren't you a little dew-drop!
A sweet bee monster who is the owner of the family trade Blooming Buzz. Sub-Doggo
Sub-Doggo
A dog monster apart of the Royal Navy, who doesn't seem to notice that they aren't in the water. Lesser Dog
Lesser Dog
Lesser than great, they are a dog monster in the Royal Navy. They needs help on where to look. Dogamy & Dogaressa
Dogamy & Dogaressa
An extremely romantic dog couple, who are both in the Royal Navy. Greater Dog
