Follow TV Tropes


Trivia / Undertale

Go To

  • Beam Me Up, Scotty!:
    • Mild example. The game's save points fill you with "determination" in regular lowercase letters. Many people mimicking the style of the save points use "DETERMINATION" in all caps, which doesn't show up until late in the game.
    • Many people quote Sans as saying "You're gonna have a bad time" late in the game. Actually, he says that much earlier in the game as a warning to stop doing the No Mercy run. His specific quote later in the game is "Do you wanna have a bad time?"
    • Advertisement:
    • The phrase "you dirty brother killer" is often associated with Sans during the Kill 'Em All Genocide route. Thing is, Sans will never say this during a Kill 'Em All run; he only says this at the end of the Neutral path if you killed Papyrus (and then say "no" to the question he asks).
    • As for the infamous 'get dunked on' Game Over screen, it's associated for whenever the Genocide final boss kills you. However, this only applies when you allow yourself to be "spared".
    • In the True Pacifist ending, Asriel never tells Frisk not to trust himself-as-Flowey if Frisk ever runs into him again. He just says to think of Flowey as a different person from Asriel. He does say, when describing the outside world, that "there are a lot of Floweys out there", but he's clearly using his past behavior as a metaphor there.
    • Advertisement:
    • Not something that's quoted particularly often, but Flowey's line if you choose to kill him after his boss fight is occasionally given in all-caps with a period at the end: "I KNEW YOU HAD IT IN YOU." In-game, it's in mixed-case with an exclamation point: "I knew you had it in you!"
  • Bootstrapped Leitmotif: Most animated fanworks and fangames involving Chara/The Fallen Child have "Megalo Strike Back" or a remix of it as their theme. While the song doesn't originate from Undertale itself, it was one of Toby Fox's earlier compositions from the Earthbound fan album titled "I Miss You - Earthbound 2012". The fandom decided it was fair game since Toby himself used another of his songs from the album ("Fallen Down") in the game. "Star" has begun to gain more popularity as Chara's theme recently due to several musicals bringing that idea to prominence.
  • Colbert Bump:
    • Once the Undertale fandom decided to push the game to victory at a GameFAQs "Best. Game. Ever." contest, a few of the website users went on to pick it up.
    • Closer to the game's launch, several Let's Players decided to play through the game, most notably Steam Train and Two Best Friends Play. Both of them gave the fandom a huge boost of popularity with their several thousand strong fanbases who were equally captivated by the game. Joel from Vinesauce was also personally contacted by Toby Fox, asking him to play the game (not only does he have a huge fanbase, but skeletons and puns are Author Appeal for him).
    • Sans is now in Smash as a Mii costume. Considering the popularity of the game, Undertale is suddenly in front of a much larger audience.
  • Contest Winner Cameo: Glyde, So Sorry, and Muffet were designed by Kickstarter backers, and so were a few NPCs.
  • Creator Backlash: Toby Fox admitted in a tweet that he was annoyed by the player character's slow movement speed, but thought adding a run button retroactively would mess up the timing of many scenes.
  • Cut Song: Quite a few.
    • A song called "Star", using instruments from the original Star Fox. According to Toby, it was originally associated with Madjick's special attack.
    • There's a 'song' called "Smile" that plays during the "Entry Number 17" event that can only be found by editing your save file or through debug mode. It's actually Muffet's laugh slowed down 1000% and pitched down.
    • There's a regal sounding variation of "Determination" (the song that plays on the Game Over screen) called "King Description" in the game files.
    • "Grandpa Semi" sounds remarkably like a very simple version of the beginning of "Metal Crusher". As of v1.001 the file has been renamed "grandpatemi" and plays if you refuse a Temmie some Temmie Flakes during a battle.
    • "Dance of Dog" and "Sigh of Dog" can be found by messing with your save file to put yourself in rooms that don't exist, giving you an error screen with the Annoying Dog either dancing or sleeping respectively.
    • Unused parts of "Finale" and "Your Best Nightmare" exist in the code, either to shorten or lengthen the songs.
    • A variation on the Ruins theme, "Ruins Piano", which is a slower version of "Ruins" and has a slight variation on the melody and sounds a bit like "An Ending".
    • "mus_piano" actually exists on the Soundtrack as "Good Night" and was used in the demo but goes unused in the full game.
    • Then there's the 'Sound Test' songs, "Meat Factory", "Trouble Dingle", "Happy Town", and "Gaster's Theme", which technically exist in-game but only through the ludicrously hard to trigger Sound Test Room in Snowdin Town.
    • There's also unused variations of songs that were revealed on the first anniversary of the game; namely a variation of Alphys's theme that was cut for sounding too much like a lab song from another game, an early version of "Spear of Justice" that was cut for not sounding like "being heroically punched in the face", "Dog Hole" (no description for this one), "Dogtroid" was supposedly meant to play if one did a Speedrun of the game and was rewarded with a picture of the Annoying Dog in a bikini, an unused version of "Undertale" that was more melancholic and "less effective", and "Patient" was reworked into "Another Medium".
  • Defictionalization: Because of the vast amount of healing items in the game, nearly every food in the game has at least one fan recipe. Spider cider donuts (sans ( hehe) actual spiders), Toriel's cinnamon-butterscotch pie, Papyrus-inspired spaghetti, spicy Grillby-inspired fries, Sea Tea, etc. At least one Tumblr is trying to actually compile a fan-made Undertale cookbook!
  • Fan Nickname:
    • "Goatmom" for Toriel has caught on due to her appearance and personality. In the same vein, Asgore is "Goatdad" and Asriel is "Goatbro", "Goatchild", "Goatkid", or "Goatson."
    • "Skelebros" or the rarer "Bone Brothers" for Sans and Papyrus.
    • Sense, Sanity or SANs is often used on Twitch for Sans, him being the Only Sane Skeleton.
    • The final boss of the No Mercy route is also known by fans as Sans Serif, somewhat a pun on "seraph", the highest ranking type of angel.
    • The two strongly polar endings have been labeled "No Mercy" and "True Pacifist", and the range of various endings in between are "Neutral". The former also has a more popular term, the "Genocide" route. It's also occasionally called "Max LV" (since it requires you to do the maximum possible amount of Level Grinding), by people who are uncomfortable calling it Genocide but don't like "No Mercy" for whatever reason. (The term "No Mercy" has also alternately been used for the Neutral ending that results from not sparing anyone, but not going out of one's way to hunt down every last monster.) Among the Neutral endings, there's the "Neutral-Pacifist" ending, in which you spare everyone, but don't go befriend Papyrus, Undyne, and Alphys and visit the True Lab, so you still fight the Neutral ending bosses and get what's pretty much the best of the neutral endings, and can then reload the game and go for the True Pacifist ending without a restart. Meanwhile, the ending received once all the requirements for a True Pacifist ending have been met in a post-No Mercy/Genocide playthrough is popularly called "Soulless Pacifist", a reference to the fact that in order to replay the game at all post-Genocide, the player must sell their soul to the Fallen Child.
    • Going down the No Mercy path has another nickname based on a line of dialog: "having a bad time."
    • Undyne is often referred to as either "Gay fish, "Fish-Waifu", " or "Strong fish." Some fans have taken to calling her "Fish Zuko".
    • Flowey's form at the end of a Neutral run is widely called Omega (and sometimes God) Flowey by fans. In game they're only referred to as their normal name; internally they're called Flowey X, and in the credits they're called Photoshop Flowey.
    • Flowey's theme, "Your Best Friend", is sometimes referred to as the "ice cream jingle".
    • So Cold is the fan nickname of the Snowdrake's Mother, due to her flavor text.
    • The True Pacifist final boss is often called the Absolute God of Hyperdeath, based on his CHECK description (which he's probably hijacked). Other nicknames include Demongoat.
    • The three bosses unique to the Genocide run (Undyne the Undying, Mettaton NEO, and Sans) are often referred to as "the Bad Time Trio." However, in fan work, it's frequently applied to the fan-created trio of Sans, Papyrus in Underswap and Chara in Storyshift (the latter two of which take Sans's place in their respective AUs).
    • Gary for your snail in the Thundersnail minigame, due to it being a clear reference to the SpongeBob episode "The Great Snail Race".
    • The final corridor before the throne room (officially called the Last Corridor) is often called the Judgment Hall because it's where Sans judges you at the end of a playthrough (and fights you in a No Mercy run).
    • In some circles, "Spider Waifu" has caught on for Muffet.
    • Fans have started calling RG 01 and 02 Harry and Scary after they began switching their roles with Bratty and Catty in Underswap works.
  • Fanwork Ban: Toby Fox had to enact a mild one regarding physical merchandise in response to the game's unexpected popularity, similar to the moratorium on Homestuck fan merchandise. Read it here. In a nutshell, mass-produced goods and anything that would be directly competing with official merchandise, such as Toriel plushies or clothing articles of any kind, are disallowed, but everything else (including one-off commissions of graphic art) is fair game.
  • God Never Said That:
    • Toby Fox denied having based Papyrus' personality on a YouTuber known as Octopimp after a wiki erroneously reported that he had.
    • Toby actually had to clarify that a certain joke post was, in fact, a joke.
    • As noted under Urban Legend of Zelda, despite widespread fandom assumption, the 'spr_mysteryman_0' sprite has not been confirmed to be W.D. Gaster.
    • An old post on Tumblr asserted that Toby privately objects to the "Genocide" name and wishes people would call it something else. While Toby hasn't deconfirmed this claim (seemingly preferring to stay out of that debate entirely), the post stopped going around when people noticed that OP didn't quote the alleged email and no other source for this claim could be found.
  • He Also Did: Before making Undertale, Toby Fox was known for composing much of the music used in Homestuck. Everdraed, too, is mostly recognized for making extremely complex photo-manipulated gifs (often with embedded sound) on SomethingAwful, YouTube, and Twitter, so his work on the Neutral final boss comes as little surprise.
  • Hey, It's That Sound!:
  • Image Source:
  • Out of Holiday Episode: An alarm clock companion app was planned as a vehicle for various humorous monologues from the characters. Development of this app was halted to focus on Deltarune, so in September 2020, Toby Fox took the Christmas Episode portion of the dialogue, polished it up, and published the dialogue by itself. At the end of Asgore's page, Flowey pops in to incredulously wonder how nobody noticed the date.
  • Quote Source
  • Recycled Soundtrack:
    • MEGALOVANIA, a song previously used in the The Halloween Hack and Homestuck, returns as a remix to play during the Genocide final boss.
    • A part of Metal Crusher was originally composed as a fan theme for Noisemaster.
    • In an interview Toby mentions that "Another Medium", "Heartache", "Fallen Down" (as mentioned above) and "Nyeh Heh Heh"/"Bonetrousle" were all songs he made for other projects that got recycled into Undertale.
  • Referenced by...:
    • In Homestuck, a small piece of the final battle against Lord English takes the form of an Undertale-style fight.
    • Sans has a cameo in the epilogue of BoxxyQuest: The Gathering Storm, and gives you his autograph if talked to repeatedly. You can view the scene here. (The Undertale music was added by the video uploader).
    • As of September 2019, Sans has also been added to Super Smash Bros. Ultimate as a Mii Fighter costume, along with a new remix of Megalovania.
    • Strange School: To the Sans fight's dialogue:
      • When talking to Iris: The fight's line "kids like you... Should be burning in hell.":
        Iris: ….But beings like him…..should be burning in hell.
        You: …That sounds vaguely familiar-
      • The return of Meatlet Jr: The fight's line: "You're gonna have a bad time":
        Meatlet Jr: …ur gonna hab a bath tim
  • Rule 34 – Creator Reactions:
    • Possibly more preemptive than a reaction, but this blog post seems to apply. Rather than saying not to make it entirely, it simply tells Tumblr users not to put tags on it that would cause it to show up along with the official developer posts and 'clean' fanart when someone searches for "#undertale", and instead use "#undertail" (because Toby Fox was aware that there would be kids playing the game and didn't want them to come across porn during an innocent search for their favorite characters).
    • Character designer Temmie Chang is more complicated about the subject. She's stated on Twitter that she dislikes pornography that features Temmies and will likely intervene with porn blogs focusing on them; she's additionally asked that all Temmie porn be tagged "Temmoi."
    • In the game proper, there are some references to the Rule 34 art as well. For one, one late-game conversation involving Toriel ends up subtly commenting on the type of art fans make of her (in spite of her age) while still staying within the fourth wall. The other is when Sans makes a small reference to the game's Furry Fandom if you persist in buying "hot dogs" from him. In both occasions, it's just a light jab at the fandom with no real contempt towards what they enjoy.
      Sans: ... you really like hot animals, don't you? hey, i'm not judging. i'd be out of a job without folks like you.
  • Sleeper Hit: Not even Toby himself expected the critical success Undertale would get when he released it.
  • Urban Legend of Zelda: Attracted so many that it has its own page.
  • What Could Have Been:
    • The demo's instruction manual can change in response to your actions in the game. This was removed when the game switched to the Studio version of Game Maker, which doesn't have the functionality needed to write images to your hard drive.
      • The demo also featured a mechanic where you'd get partial EXP from enemies you damaged and then Spared. This partially nullified the main gimmick of a Pacifist run and promoted grinding, so it's not too surprising to see that it got cut. Well, that and the fact that EXP is actually Execution Points, so gaining it from not executing enemies wouldn't make sense. The demo manual does carefully refer to EXP as "Ex. Points", which means that either Toby hadn't yet noticed the Fridge Logic or he had a different "Ex" word in mind, though nobody seems to have come up with one that would make more sense.
    • The final boss of the No Mercy route was going to be harder, with one of the Interface Screw attacks (attacking the player's menu cursor) being able to kill. Thankfully, the attack was limited to reducing HP to 1.
    • On the Undertale Kickstarter page, the Dating Sim segments are mentioned, alongside a statement that "Seriously, you can literally have a robot husband." This seems to be referring to Mettaton (who hadn't been revealed yet), but there's no option to date him in the final game. It may have been cut for plot reasons, because by the time you make peace with Mettaton, he's out of commission until after the True Pacifist final boss.
    • Within the game files, there's an unused rough draft of a "Spell" option for the battle menu, indicating that you might have been able to learn magic spells of some kind. In addition, a screenshot showing a pre-alpha build of the game with the aforementioned icon reveals "Act" and "Mercy" were originally called "Talk" and "Spare", respectively.
    • According to Toby, Mettaton originally literally saved your essays about him for future reference; specifically, he'd save them to your hard drive. It was cut for being buggy in some way.
    • A comment in the game's code that Toby posted suggests that Muffet was going to have croissants that attacked vertically as well as horizontally. Given Toby's strong language in said comment, they were most likely removed for being too hard to dodge.
    • It was originally planned to have a second pair of royal guards, RG 03 and 04, who would replace RG 01 and 02 depending on the day of the week. Much like the Pacifist solution for 1 and 2 was to get 1 to confess his love to 2, the Pacifist solution to 3 and 4 would be convincing them to forgive each other for an argument and become friends again.
    • Toriel was probably planned to commit suicide according to a Dummied Out sprite of her that has suicide in the file name. The idea was likely scrapped due to the concept being too dark too early in the game, but it was pushed onto Asgore, if the player attempts to spare him after having killed Flowey previously.
    • The main menu theme has six variations which play depending on where you are in the game and how many characters you've befriended. Another variation exists in the game files between the fifth and sixth used songs, suggesting there was meant to be a dating sequence with a seventh character. (This was most likely Mettaton given several comments during the game's development process, but there's no opportunity for the player to make friends with him in-game since he's out of commision after his boss fight.)
    • The official Undertale artbook reveals a lot of character designs that were planned and either changed or scrapped:
      • The playable human character originally was going to have a black outline on their sprites, but this was changed to match the color of their hair since most of the game was in a dark underground cavern and a black outline would blend in too easily.
      • Toby was originally going to have the player kill Toriel in order to proceed in the story. As he wrote Toriel's dialogue, he felt like killing her was just wrong and from there, he rolled with the idea of making Undertale a game where you can progress without having to kill anyone. Toriel's first design was something vaguely human before Toby changed it to a goat design. Toriel was also designed without horns, but Toby noted that she looked too similar to the mimigas from Cave Story. He was partially inspired by the mimiga design and loves Cave Story.
      • Papyrus originally was going to be quite mean-spirited, wear a fedora, and would have little to no redeeming qualities about him. Sans was going to wear some sort of visor hat, possibly having him run some sort of casino, and he was going to tell a lot more bone related puns.
      • The female bunny shopkeeper in Snowdin had an old, grandmother-looking design, and also wore a dress and a bonnet.
      • Asgore originally had no facial hair, and his hair in general was supposed to be black or brown, but was changed to blonde in order to make him stand out more.
      • Toriel's overworld sprite had gone through several changes; Her outfit was originally some sort of poofy dress with a scarf draped around her neck. The dress was made less and less poofy until it was changed into the robe Toriel wears in the final version, and the scarf was removed entirely.
      • Alphys was going to be male, but Toby didn't like how the design came out, so he stuck on some eyelashes and made Alphys female instead.
    • Toby planned to have it so that if you managed to beat Asgore in one hit that Flowey would appear, dumbfounded, announce you won, then leave while silly music played.
    • The game also originally had a karma system, and was generally very different from the final product.
    • Toby spoke to Nintendo about the possibility of creating a port of Undertale for the 3DS or Wii U, but said it would be difficult as neither console supports Game Maker. With the Wii U itself pretty much dead in the water, it's very unlikely that a version for that console will ever happen. Indeed, though an Undertale port on a Nintendo console was eventually released, it was for the Nintendo Switch, not either of the aforementioned.
  • The Wiki Rule: Right here. There’s also this one from Gamepedia.
  • Word of Dante:
    • Everyone in the fandom seems to be working on the assumption that the six human SOULs were children like the Human Child and Chara, even though there's no evidence of this in game at all.
    • Simmilarly, everyone assumes that the Mystery Man and W.D. Gaster are one and the same, despite a complete lack of direct evidence, but to be fair it's the best guess anyone has.
  • Working Title: During the Kickstarter period, the game's title was capitalized differently, being seen as both "UnderTale" and "UNDERTALE". Eventually, it morphed into "Undertale" and stayed that way.
  • Writer Revolt: Sony mandated, among other things, that trophies be in the PS4 and PS Vita versions of the game. Toby Fox hated the idea of included Video Game Achievements, as one of the major points of the narrative was deconstructing 100% Completion. So the trophies included were about half Effortless Achievements (getting a small number of items, progressing through the main storyline regardless of your path) and the rest were donation to the Dog Shrine added to this version. All of them have essentially the same icon, making it comically obviously that as little work possible was put into them. Some of the trophies listed are:
    1. Don't Worry, I Have Lots of Ideas for Trophies
    2. Like Getting Items
    3. Or Getting More Items
    4. Help Me, I'm Out of Ideas


How well does it match the trope?

Example of:


Media sources: