Store Page
Undertale
All Discussions Screenshots Artwork Broadcasts Videos News Guides Reviews

Undertale

Store Page
Undertale > Guides > HEALSLUT's Guides
1,127 ratings
UNDERTALE :: Pacifist Guide + Secrets
By HEALSLUT
A roadmap on how to get through the Underground, Pacifist style.

Note: To make this guide as spoiler free as possible, all [Boss Monsters] are listed at the bottom. However! The boss names are all clearly listed there, which can be a spoiler in itself, so please be careful if you care about that sort of thing. Read safely! (´・ω・`)
  • Spare: The method in which you can spare them.
  • Credits: The interaction you need to have in order to have their names yellow in the credits! If I'm missing any or wrong about any, please let me know in the comments.

As a general notice, please don't post spoilers without hiding them behind the spoiler tags as such:

[spoiler]Papyrus likes spaghetti.[/spoiler]

Thank you! ♥
8
   
Award
Favorite
Favorited
Unfavorite
Created by
HEALSLUT
Offline
Category: Secrets, Walkthroughs
Languages: English
Posted
Updated
28 Sep, 2015 @ 5:08am
19 Feb, 2017 @ 5:10am
37,760 Unique Visitors
1,898 Current Favorites
Guide Index
Overview
▶ Controls 
:: Monsters 
:: BOSS Monsters 
:: True End 
▶ Tips & Secrets 
Comments
▶ Controls
[FIGHT]
Attack. For the sake of this guide, don't do this!
[ACT]
Check the enemy's stats or interact with them, if their name turns yellow you can Spare them.
[ITEM]
Use an item.
[MERCY]→Spare
Spare the enemy, so that the battle can end without fighting.
[MERCY]→Flee
Run away from the monster. Small chance to fail.
:: Monsters
*Note: I recently condensed every monster into this singular section, if you preferred them being divided as before, please drop a line. I just think it's cleaner this way.

:: RUINS
Monster
Name
Spare
Credits
Froggit
Compliment
N/A
Whimsum
Spare
Console
Moldsmal
Spare
Flirt
Migosp
Dismiss all other monsters first.
Talk to him alone!
Loox
Don't pick on.
N/A
Vegetoid
Dinner. Eat your greens!
N/A

:: Woods
Monster
Name
Spare
Credits
Snowdrake
Wait until he tells a joke, then laugh at it.
N/A
Ice Cap
Ignore him twice.
Ignore *2, steal his cap, compliment.
Jerry
Just... ditch him...
Not even the credits care.
Lesser Dog
Petpetpetpetpetpet! Or use Stick. :3
Use the non-stick method of sparing.
Gyftrot
Undecorate it...
N/A

:: Waterfall
Monster
Name
Spare
Credits
Aaron
FLEX IT UP. Or shoo.
Turn on one of Blooky's songs, then go encounter an Aaron.
Woshua
Ask to be cleaned!
N/A
Shyren
Hum
Hum, hum, conduct, keep humming!
Temmie
Talk, flex, or feed her Temmie Flakes.
Talk. (I think.)
Moldbygg
Unhug, respect its boundaries!
N/A

:: Hotland
Monster
Name
Spare
Credits
Vulkin
Hug :3
Encourage
Tsunderplane
Approach, but don't get too close! Only touch the green~
N/A
Pyrope
Heat up!
N/A

:: The CORE
Monster
Name
Spare
Credits
Madjick
Stare at both orbs.
N/A
Knight Knight
Hum to her. Slumbers faster if you sang with Shyren!
N/A
Whimsalot
Pray
N/A
Final Froggit
Mystify
N/A
Astigmatism
"He always gets his way." Do whatever his text suggests?
N/A
:: BOSS Monsters
A list of how to beat every boss, Pacifist style. Boss names are listed, so if you're worried about being spoiled by a boss name, don't read on. There's nothing more I can do to hide it aside from separating it from the main list, sorry!

RUINS
Name
Spare
Napstablook
Cheer repeatedly, about 4 times.
TORIEL
Spare repeatedly, about 20 times.

Woods
Name
Spare
Doggo
Pet, or throw Stick.
Dogamy & Dogaressa
Roll around, re-sniff, pet both of them. Stick!
Greater Dog
Beckon, pet, play, pet, pet, spare. ... Stick.

Snowdin
Name
Spare
Papyrus
Flirt if you like (unlocks a date!) then just outlast him.

Waterfall
Name
Spare
Mad Dummy
Aim his own attacks back at him! *You may need to [ACT] > [Talk] for him to be yellow in the credits.
UNDYNE
Dodge her attacks until your SOUL is RED then flee, head north, and repeat.

Hotland
Name
Spare
Mettaton
Answer the quiz to the best of your ability. Last answer can be anything, but the true one is Undyne.
Royal Guards
Clean RG02's armour, whisper to RG01. Uguu... ;////;
Muffet
Outlast her OR if you saved an item from the Spider Bake Sale in RUINS, eat it now.

The CORE
Name
Spare
Mettaton
Live through his monologue...
Mettaton EX
Get the ratings to 10k! Tips: Boast & avoid damage, pose after taking damage, eat a Glam-brand food.

The End
Name
Spare
ASGORE
You MUST [Fight]. Talk to him thrice for buffs and/or eat TORIEL's pie, use the stick. Spare at the end.
Flowey
Don't get discouraged, he is going to screw with you. A LOT. Keep reloading the game and carry on. His nightmare fuel mode has "checkpoints". I believe in you! ♥
:: True End
If you're reading this, it's probably too late, but if you're not working on the True Pacifist End at this point, don't read on! ESPECIALLY don't read what's under the black spoiler tags below.

You've been warned! (*˘︶˘*).｡.:*♡

True Lab (Amalgamates)
Name
Spare
Sink [Memoryhead]
CELL and then Refuse.
Mirror [Reaper Bird]
Pray. Mystify. Pick on.
Save Point [Lemon Bread]
Flex. Hum. Unhug.
Fan [Endogeny]
Beckon, pet, play, pet, pet, spare. OR throw Stick.
Fridge [Amalgamate]
Joke*3.

True Ending Boss
Name
Spare
Asriel Dreemurr
[Pray] to reduce damage, [Dream] for healing items. It's fairly straight forward from here!

That's all for now, folks! Thanks for reading. (人´3｀)⌒♡
▶ Tips & Secrets
None of these are obligatory, they just exist to get more out of the game.
Participate at your own discretion!

Wait for TORIEL
In the RUINS, if you wait for Toriel like a good child, after the first 5-7 minutes you will receive a phone call. There's about 7 more over the next 30 minutes. This isn't important, just for fun! You'll know when you've got the last call when it's something like: Snore... snore... *click*
Spider Bake Sale
If you buy a Spider Donut or Spider Cider here, they can be used later to end the fight against Muffet early. But why would you want to do that? Ahuhuhuhu~
Piano Puzzle
Correct Notes: ○ ↑ → ○ ↓ ↓ →
The treasure is a red herring, what you're truly after is the Dog Residue left in your inventory by the Annoying Dog. Using it randomly creatures more residue or "Dog Salad" - a useful RNG based healing item.
Temmie Village
Two screens right of the "Waterfall" boat location + turtle shop.

You can walk the path regardless of whether or not it's lit up, but it will be lit up after you touch the final mushroom on the way to the next room.

If you send Tem to college, she'll come back and stock a piece of armour at 9999g. The price lowers based on how many Game Overs you have.
Room Service
  1. Buy hot dogs from sans in Hotland.
  2. ... Keep buying hot dogs (and cats???), just for fun.
  3. Take a hot dog to the last room in the right-side hall in the hotel.
  4. Slide hot dog under the door. Somehow.
  5. Receive Hush Puppy!
Mystery Key
Outside the hotel, you can visit Catty & Bratty's shop in the alley to the right. There you can purchase the "Mystery Key" for 600g.

The key can be used to open the house next to Napstablook's in waterfall.
sans.
Ever wondered how to get into his bedroom? ; )

When you reach the orange hued cathedral like room where sans bestows judgement upon you, hear what he has to say then quit and reload your save - make sure you saved BEFORE talking to him. Repeat this 3 times and he'll give you the key to his bedroom. You fartmaster.

In there, you'll find another key, which opens the secret door behind their house.
Secret Door
To open the mysterious door outside of Snowdin, you need to successfully dodge everything in the mini-game portion of the True End credits. As of yet, there's nothing but a doggy dev room back there!
An Old Friend
After the True End you're able to walk all the way to the beginning of the RUINS, where you'll find and be able to talk to Asriel in his true form. It is currently unknown - or not in the game yet - if there is any way to save him. ;_;
188 Comments
< >
stevo_08 17 hours ago 
SOMEONE TELL ME, ARE HANGOUTS REQUIRED?
brantleyvision 19 Feb @ 5:40pm 
░▄ ▀▄▄▀▄░░░░░░░░░ This is Toby.
░█░░░░░░░░▀▄░░░░░░▄░Toby wants to take over Steam.
█░░▀░░▀░░░░░▀▄▄░░█░█He needs your help.
█░▄░█▀░▄░░░░░░░▀▀░░█Copy/paste Toby to help him.
█░░▀▀▀▀░░░░░░░░░░░░█If not, he will use the Legendary Artifact's power. On you.
█░░░░░░░░░░░░░░░░░░█
█░░░░░░░░░░░░░░░░░░█
░█░░▄▄░░▄▄▄▄░░▄▄░░█░
░█░▄▀█░▄▀░░█░▄▀█░▄▀░
someone 5 Feb @ 2:06pm 
░░░░░ ▄▄▄░░▄██▄░░░
░░░░░▐▀█▀▌░░░░▀█▄░░░
░░░░░▐█▄█▌░░░░░░▀█▄░░
░░░░░░▀▄▀░░░▄▄▄▄▄▀▀░░
░░░░▄███████░░░░░░░
░░░█▀███████░░
░░░▌░███████░░
▄░▐░░░▀████▀ ░░ THIS IS PAPYRUS
▀█▌░░░▄░▀█▀░▀ ░░ COPY AND PASTE HIM,
░░░░░░░▄▄▐▌▄▄░░░ SO, HE CAN BECOME A MEMBER
░░░░░░░▀█████░▄░░ OF THE ROYAL GUARD
░░░░░░▐▌▀███▀▐▄░░
░░░░░░▐▀░░░░░░▐▌░ NVM THEY DISBANDED IT
░░░░░░█░░░░░░░░█░░
Chucklenuts 27 Dec, 2023 @ 12:24am 
░░░░░ ▄▄▄░░▄██▄░░░
░░░░░▐▀█▀▌░░░░▀█▄░░░
░░░░░▐█▄█▌░░░░░░▀█▄░░
░░░░░░▀▄▀░░░▄▄▄▄▄▀▀░░
░░░░▄███████░░░░░░░
░░░█▀███████░░
░░░▌░███████░░
▄░▐░░░▀████▀ ░░ THIS IS PAPYRUS
▀█▌░░░▄░▀█▀░▀ ░░ COPY AND PASTE HIM,
░░░░░░░▄▄▐▌▄▄░░░ SO, HE CAN BECOME A MEMBER
░░░░░░░▀█████░▄░░ OF THE ROYAL GUARD
░░░░░░▐▌▀███▀▐▄░░
░░░░░░▐▀░░░░░░▐▌░░
░░░░░░█░░░░░░░░█░░
Cakeygoalkeeper 6 Nov, 2023 @ 9:29am 
Papyrus HATES spegehtta.
Cakeygoalkeeper 6 Nov, 2023 @ 9:27am 
hi dudis
Dudis 3 Nov, 2023 @ 7:37pm 
hi sarah
Cakeygoalkeeper 9 Oct, 2023 @ 1:04pm 
C:\Users\sarah\AppData\Local\UNDERTALE
Cakeygoalkeeper 9 Oct, 2023 @ 1:03pm 
:spoiler: papyrus
Cakeygoalkeeper 1 Oct, 2023 @ 10:58am 
Papyrus loves spaghetti