UnderPlus

UnderPlus is an AU sequel to the original Undertale, and was created by Quantis1. This AU tells the story of a genocidal Frisk that lost all their determination when they tried to absorb Sans’s soul; the soul rejected the fusion with Frisk’s soul, and their separation caused the timeline to entirely reset until the arrival of the monsters in the Underground. This event is known as « The Rupture ». Dozens of timelines later, Frisk wakes up in an Underground modified by Sans, with stronger monsters, and minds changed.
A good example of modified fate is Flowey, as he’ll be telling Sans about each of Frisk’s moves and won’t hesitate to block your path multiple times. The reason is that because now that Sans is the one able to reset, he remembers Flowey’s abilities and made a deal with him, which is that he helps Sans in his attempt to kill Frisk once and for all, and once this will be done, the skeleton will let him absorb their soul.
== Character changes ==
Characters in order of appearance.
=== Frisk ===
Before the Rupture, they were stuck in a loop of genocide routes. Their knowledge of Sans’s fight allowed them to kill him earlier than supposed. Which made his code bug, and didn’t shatter his soul. When they saw that his soul wasn’t breaking, they decided to absorb it, and from this, the Rupture happened. They’re waking up from a long « nap » while their determination was regenerating. Now, they are curious about what Sans can do, but New Underground also means new opportunities and endings... 
=== Flowey ===
Since Sans is the most determined being in the Underground until Frisk’s awakening, Flowey has never been able to reset. However, he does have memories from the past timelines (the ones controlled by Sans, he doesn’t remember the rest), and is afraid of that power. That’s why Sans offered him to work together in exchange of Frisk’s soul once they’ll be dead once and for all, but to make sure Flowey stays loyal to him and sane, he injects him small doses of determination, just enough for him to keep his feelings and not melt. As in the original game, when Frisk quickly turns around, they’ll see Flowey go back in the ground, meaning he’s spying them. In a neutral route, he’ll think that if you’re still alive after meeting Sans, it’s that he let you pass, meaning he failed, and that he has to get your soul by himself, so he’ll kill Asgore, take the souls and act as the original for the rest of the route, although he’ll be less psychopathic and will show a real motivation to kill you. 
=== Toriel ===
Toriel is more unsure about if she should trust you (the Player/Frisk) than the original one due to Sans telling her that you’re a dangerous person. She will submit you to tests during your travel through the Ruins. She won’t call you “my child” but “human”. You can see that she regrets leaving Asgore due to having photographies of him and their children in Home. She wears jewelry and a flower crown, and if you do a genocide, she will talk about her “mistake”, and that it’s time for her to assume her role, and protect others like she always should have. However, in a “Pacifist” route, she will act as the original Toriel towards Asgore.
===Sans / Karma Sans===
Sans has brain-washed and changed the fates of everyone. He doesn’t care about the consequences since he is persuaded that once he’ll have your soul, he will be able to make everything go back to normal. He pushed Papyrus to make harder puzzles, told the royal guards that you’re here and he is DETERMINED to give you a warm welcome. He is much stronger and won’t hesitate to kill you the moment he sees you. It will take much more than one timeline to befriend him, but it’s not impossible. 
=== Papyrus ===
The captain-in-second of the royal guard is one of a kind. Although he will listen to Sans and be agressive towards you, if you show no bad intents, he will get attached to you and be your only way to avoid Sans’s fury through Snowdin. He has a group of fans named the Paps gang, that will encourage him when you’ll battle. If you go on a date with Papyrus (the process is the same that in Undertale), he will tell you how he saw Sans become more and more coleric and closed over the years, and that you might just be the person who could make him happy again. His spaghetti are delicious, and reputed around Snowdin.
=== Monster Kid ===
Fervent member of the Paps gang, if you spare Papyrus, he will accompany you through the Waterfalls and will be the one protecting you from being attacked by Undyne and/or Sans. However, if you kill Papyrus, he will only appear on the bridge where you’d usually fight the Undying and fight you. He can be killed in that battle.
=== Undyne ===
“My only mistake” says Sans about her. She growed with a burning rage against humanity, but when she killed the Kindness Human, she was perturbed not seeing him even try to fight back. Now she just stays in Waterfall, haunted by doubt and regrets. You’ll see her multiple times, but she’ll only notice you when entering the Piano Room. She’ll say that she hoped you wouldn’t get this far, before spawning spears, and launching the fight against her. If you spare her, she’ll stop the fight, saying she can’t do this, and will let you pass. In a genocide route, however, she’ll be waiting you at the exit of Waterfalls. A fight similar to Undyne the Undying will initiate, with no possibility of running away. 
=== Temmies ===
This happy race will welcome you open arms, they are a little community that believes the humans doesn’t deserve to die. While you’re in the Temmie Village, you’ll be safe from Royal Guards. In Genocide Route, if you enter their village, you’ll have to fight Temmie, The Hero Of Legends (Easter Egg fight).
=== Mettaton ===
Due to Sans not knowing much about him, he hasn’t really changed. When he’ll see that you can’t enter in Alphys’s lab, he’ll send you a message telling you the secret password for Alphys to open you. In a Genocide route, you won’t one shot him, and will have to deal with his NEO form.
=== Alphys ===
Undyne will tell you about Alphys that she only opens her lab to Mettaton and her, but that she (Undyne) thinks it’s better to leave her alone for the moment. Apparently, she once told to everyone that she had found strange notebooks about multiple things, especially a substance that could heal any hurt monster, but that she stopped showing herself sometimes after her first experiments. However, when going to MTT Resort, you’ll find her talking to Sans about “the abominations” she created, and that she still needs his help to find a cure, implying that they are secretly working together to try to heal the amalgamates, even though Sans knows well it’s impossible, meaning he’s doing this for another reason... If you talk to Papyrus about Undyne and Alphys’s conditions, he’ll decide you both need to set up a date to make them reconcile.
=== Muffet ===
The so-called “empress of spiders” is obsessed by everything that shines: money, jewels, gems, all of it. If someone wants to go from Hotland to MTT Resort and vice versa, they’d better have something to pay with, otherwise... they’ll probably join the toy collection of Muffet’s pet. 
=== Asgore ===
Though he’s still the king, he put his crown and his armor aside. He spends most of his time gardening or taking tea with visitors. He only keeps his trident, estimating that the blood of innocents on it shouldn’t touch anyone other than him. 
=== Asriel ===
Missing 
=== Chara ===
During your journey, they’ll encourage you to spare monsters. Even if you choose Genocide path, they’ll make it harder, sometimes making your attacks miss, or forcing you to throw items away. If you keep going, you’ll fight them at the end of Hotland. You can’t really kill them, you’ll just erase them of your memory. Their last words will be : I know you want a happy ending as much as I do, forgive me...
=== Gaster ===
He pretty much acts like the original. You’ll find notebooks that probably belonged to him in the True Lab, where he explains his theory about Alternative Universes, determination and more...
== OCs ==
=== Temmie, The Hero of Legends ===
If you enter the Temmie village during a Genocide route, the Temmies will make a ritual to stop you, and summon the Hero of Legends. This Temmie stands on her two feet, has a sword and an armor, and is much smarter and stronger than the others. In some of her attacks, she’ll summon her dragon. If you beat her, you won’t get any EXP, but will obtain the Temmie Armor.
=== Spectral Beat ===
Spectral Beat is the band that plays at most of Mettaton’s shows, and another group of stars in the Underground. It is composed of Napstablook (Leader/DJ), Shyren (singer), Mad Dummy (drummer) and So Sorry (bassist).
=== The Stranger ===
I think someone is following me sometimes when I’m alone, even though I never see anyone - Notebook n°3
During your journey, you could sometimes see someone in a purple cloak behind or ahead of you, but they’ll disappear if you try getting close to them. Gaster’s notebooks talk about them multiple times, it seems that Gaster was afraid of himself, Sans or Papyrus being left alone, as the Stranger would appear little time after. However, the skelebros don’t talk about them at any time.
== Endings ==
=== Neutral ===
In a neutral route, when you’ll arrive to Judgement having more spared or escaped monsters than killing them, Sans will say that he’s surprised you didn’t kill them all. He’ll then ask you a few questions. Answer well and he’ll let you pass, but not without a warning. If you’ve more killed than spared, or have answered wrong to his quizz, you’ll enter into a one-phase battle against him. If you keep sparing him, he’ll stop the fight and leave. But if you keep attacking, he’ll eventually dodge too late, and get hit. He’ll then teleport away after calling you a «f*cking degenerate ». You won’t win any EXP, implying he’s still alive. After winning against Omega Flowey, you’ll receive a call from... Papyrus, but only if you didn’t kill him.
=== Pacifist ===
At the end of a Pacifist route, Sans will attack everyone (including Flowey), and act as Flowey does in the original Pacifist route. He’ll say that he sees clear through your little game, but that you only gave him a golden opportunity to get rid of you once and for all. His friends will tell him to stop, and protect you from his attacks, but he’ll reply that it doesn’t matter, since that soon, they will all have forget about this, and be free. He’ll then absorb the souls of all the monsters in the Underground. You can beat him by making him run out of magic, but once he’ll have broken the Barrier, and freed everyone, he’ll tell you that he erased himself from everyone’s memories, and that you should forget him too, because it’s better like that. Thanks for reminding me who I was. [...] Welp, see ya around... Frisk. 
=== Genocide ===
After battling and killing Flowey in Asgore’s house, a three-phases fight against Sans will occur in the Judgement Hall. The phases are detailed in Sans’s wiki page. At the end of the fight, you’ll be left with 0.01 HP and very little Determination. Instead of meeting Chara, you’ll hear this :
== Trivia ==
* Before entering the Royal Guard, Papyrus used to dress as a superhero : Captain Cool Skeleton, defender of the Underground and the Monsterkind. Even though he wouldn’t trick anyone with his costume, people liked him because he was helpful and optimistic. That’s how he got most of his fans.
*If Papyrus joined the Royal Guard, it’s because he was searching for Undyne to show him his new attack. He finally found her discussing with the king. When asked who he was, Papyrus told to Asgore that he was Undyne’s student. Curious, Asgore asked him to show some of his abilities. The skeleton was so excited that for the first time, he summoned a Gaster Blaster. Impressed, the king decided to name him Royal Guard. He quickly grew popular and sympathetic to his coworkers.
*Underplus has something called “Side stories”, they are side-quests that you can start by filling special conditions, but that doesn’t change the main course of the “game”. Here are some Side stories :
- A bone for the dog : A simple quest to define the concept of Side Stories. During the fight against Papyrus, you can go in the ACT menu, and choose Grab to grab an attack, that will go in your ITEM menu. After the fight, you can give them to the Annoying Dog in Snowdin. For each bone you give him, you will receive a Dog Salad.
- Burger business : Help Burgerpants convincing Mettaton he can do better than just selling Burgers, a simple date/minigame with the two characters.
- Napstablook’s Tragedy : After breaking the Barrier, you find out not all monsters want to see the Surface. Mettaton tells you that if you convince the most desperate of them (Napstablook), they will surely accept. And so begins a story about reconciliation between the Blook family, ending up with the Last Show of Spectral Beat, and a special battle against the whole band.
* The skelebros have a cat that Papyrus named Mr.Lollipop... for some reason.
Category:Character changes
Category:Sequel