Overview
NOTE: not made by me,is from the undertale wiki,but,you know,i put it on steam ….Upon completing the Neutral Route, the protagonist will receive a phone call post credits that will provide a hint to the next requirement in getting the True Pacifist Ending. If Flowey is spared, he will appear afterward and elaborate on the hint, but if he is killed, the game immediately returns to the title screen. The protagonist can then reload their save file to fulfill any missing requirements, as long as they have not gained any EXP/LV; otherwise, they must reset their game. Note that killing Asgore or Flowey does not accrue any EXP, as the protagonist cannot save after fighting them anyway.The list of requirements are as follows:Throughout the game, never kill any enemies or gain any EXP/LV; essentially, only use non-lethal battle exits (spare, flee, or battle-ending ACTs). FIGHTing monsters or destroying the Dummy in the ruins do not lock players out of this route, as they do not accrue EXP.After fighting Papyrus, visit his house and complete the date/hangout with him.After Undyne passes out from pursuing the protagonist, get a cup of water from the nearby water cooler and pour it on her.Return to Waterfall and go to Undyne’s house. Papyrus will be waiting outside. Talk to him to enter the house, then complete the “cooking lesson” and faux battle with Undyne.Complete the Core and spare Mettaton EX.Complete the Neutral Route in order to begin the next series of events.Backtrack out of the Core towards the MTT Resort, to the bridge connecting the two places. There, Undyne will call the protagonist asking to deliver a letter for her.Talk to Undyne outside of Papyrus’s house to receive Undyne’s Letter.If the protagonist had reached the bridge without completing the “date” with Undyne, then backtracked to complete such, she will give them the letter at that point, unless their inventory is full in which they will have to receive it from her at Papyrus’s house.If the protagonist discards the letter, they can return to Undyne to receive Undyne’s Letter EX, which cannot be discarded.Put the letter under the door of Alphys’s Lab and complete the “date” with her.Papyrus will call and tell the protagonist to meet Alphys at her lab. Return to Alphys’s Lab to find a note leading to her “bathroom” containing the True Lab.Find the four keys scattered throughout the True Lab and put them in their proper slots to open the generator room. Turn on the generator to trigger a conversation with Alphys. Head back to the elevator near the generator room to be warped to New Home, with the exit vined off. This signals that the Pacifist Ending will occur.MAIN STORY:Completing FriendshipsIf you have not befriended Papyrus in a Neutral Pacifist run, proceed to Papyrus’s house in Snowdin for your date/hangout with him.If you have not befriended Undyne in a Neutral Pacifist run, proceed to Undyne’s house in Waterfall. Papyrus will be waiting there.Befriending AlphysAt the entrance to the Core, Undyne calls the protagonist (at the behest of Papyrus) to ask them to deliver her letter to Alphys.If you befriend Undyne after a Neutral Pacifist run, she will give you the letter immediately after befriending her, saying Papyrus suggested it to her earlier, but she still hated you at the time.After delivering the letter to Alphys, she mistakes the letter as being from the protagonist themself, and goes on a date with them.During Alphys’s date, the two go to the garbage dump near the Waterfall. They bump into Undyne, who decided to deliver the letter herself. Alphys tells Undyne some truths about her ‘scientific’ work, which was just her lazing around and watching anime and reading manga. Undyne expresses her support for Alphys, sending her off to train with Papyrus. She then confronts the protagonist about anime, asking if it is real.After the date, Papyrus calls the protagonist and very specifically instructs them to go to Alphys’s lab, citing no reason other than a ‘good feeling’ he claims to have about doing so (This may be because Flowey told him to tell the protagonist, but didn’t want the protagonist to know).True LabArriving at the lab, the protagonist finds a note from Alphys, in which she declares she will ‘face [her] own mistakes’. The note tells the reader to enter what was previously thought to be Alphys’s bathroom to discover the truth, in case Alphys does not return.The protagonist enters the door, discovering it to be an elevator. They take the elevator down to the True Lab, but it loses power, leaving them stuck in the lab. Exploring the lab, they find logs from long ago, detailing Alphys’s experiments with souls and determination to restore monsters from death. Injecting determination into the dead monsters successfully restored them to life, but they melted and turned into amalgamates – fusions of several monsters. Several of these amalgamates attack the protagonist, but the protagonist spares them. The protagonist sees the determination extractor, resembling part of Flowey’s form during his boss battle in the Neutral Route, and they learn that Alphys did some experiments with golden flowers, which produced a single living specimen who escaped.The protagonist switches the power on, restoring power to the elevators. Alphys appears and saves them from some amalgamates, who she explains were hungry, resulting in their aggression. She further explains that the monsters’ bodies couldn’t handle the determination and melted together. Alphys thanks the protagonist for their support, and declares to the amalgamates that they will return home.Alphys leaves the true lab, and the protagonist returns to one of the elevators. They receive a call from someone they do not recognize. The voice, implied to be Asriel, calls the protagonist by the name given to the Fallen Human at the beginning of the game, and tells them that ‘everything has fallen into place’ and that the voice will ‘see you soon’.After that…CONGRATULATIONS,you will go to the asgore fight,but Toriel appears and…(you have to play it to know it)another note: i change things for lower spoilers soooo…..BE GOOD!pd:link to the wiki http://undertale.wikia.com/wiki/True_Pacifist_Route#