UNDERTALE: List of How to Spare Monsters

Ruins

Encounter

Monster	Details / How to Spare
Dummy	【Details】 ATK: 0 DEF: 0【How to Spare】 Action: "Talk"
Froggit	【Details】 ATK: 4 DEF: 5【How to Spare】 Action: Compliment or threaten to spare
Whimsun	【Details】 ATK: 5 DEF: 0【How to Spare】 Can be spared from the beginning
Moldsmal	【Details】 ATK: 6 DEF: 0【How to Spare】 Can be spared from the beginning
Migosp	【Details】 ATK: 7 DEF: 5【How to Spare】 Can be spared if it is the only remaining enemy
Loox	【Details】 ATK: 6 DEF: 6【How to Spare】 Action: "Don't Pick On"
Vegetoid	【Details】 ATK: 6 DEF: 6【How to Spare】 ・Action:"Dinner" ・Touch the green vegetable.

Mini Boss

Monster	Details / How to Spare
Napstablook	【Details】 ATK: 10 DEF: 10【How to Spare】 Action: "Cheer" four times

Boss

Monster	Details / How to Spare
Toriel	【Details】 ATK: 80 DEF: 80【How to Spare】 ・Avoid attacks ・bring your HP down to 2 ・Action: "Mercy" ・Action: "Spare"

Snowdin

Snowdin is a small town located in the snowy region of the Underground. It is the second major area that players will encounter in the game. The town is inhabited by various monsters, including the friendly Snowdin Shopkeeper and the mischievous Doggo.

Points of Interest

1. Snowdin Shop: This shop is run by the Snowdin Shopkeeper. The Shopkeeper sells a variety of items, including healing items and weapons. Make sure to stock up on supplies before continuing your journey.

2. Snowdin Inn: The Snowdin Inn is a cozy place where you can rest and recover your HP. The innkeeper is a friendly monster who will provide you with a warm bed for the night.

3. Snowdin Library: The Snowdin Library is a great place to learn more about the history and lore of the Underground. Take some time to explore the shelves and read the books.

4. Snowdin Forest: The Snowdin Forest is a dense forest located just outside of town. It is home to various monsters and puzzles. Be prepared for some challenging encounters as you navigate through the forest.

NPCs

• Snowdin Shopkeeper: The friendly shopkeeper runs the Snowdin Shop. He has a wide selection of items for sale, including healing items and weapons. Don't forget to say hello!

• Doggo: Doggo is a mischievous monster who loves to play tricks on unsuspecting travelers. He can be found in various locations around Snowdin. Keep an eye out for him!

Side Quests

• The Great Papyrus: The Great Papyrus, a skeleton monster, can be found in Snowdin. He has a series of puzzles and challenges for you to complete. If you can impress him, he may even become your friend.

• The Snowman: There is a friendly snowman located in Snowdin who is looking for help. Find all the pieces of the snowman and put him back together to complete this side quest.

Tips

• Explore every nook and cranny of Snowdin to find hidden items and secrets.

• Talk to the NPCs in Snowdin to learn more about the world and uncover new quests.

• Be prepared for battles in the Snowdin Forest. Make sure you have enough healing items and weapons to survive.

• Save your game often to avoid losing progress.

Enjoy your time in Snowdin and have fun exploring the snowy wonders of the Underground!

Encounter

Monster	Details / How to Spare
Snowdrake	【Details】 ATK: 12 DEF: 7【How to Spare】 Action: "Laugh" after Snowdrake tells a joke.
Chilldrake	【Details】 ATK: 12 DEF: 7【How to Encounter】 Defeat at least one Snowdrake【How to Spare】 ・Action: "Check" or other neutral actions ・Action: "Agree"
Ice Cap	【Details】 ATK: 11 DEF: 4【How to Spare】 ・Action: "Ignore" twice ・Action: "Steal" ・It turns into Ice
Jerry	【Details】 ATK: 0 DEF: 30【How to Spare】 Leave only one Jerry and choose "Ditch"
Ice	【Details】 ATK: 1 DEF: 0【How to Spare】 Action: "Compliment"
Gyftrot	【Details】 ATK: 16 DEF: 8【How to Spare】 ・Action: "Undecorate" three times ・Action: "Gift"

Mid-Boss

Monster	Details / How to Spare
Doggo	【Details】 ATK: 13 DEF: 7【How to Spare】 ・Action: "Pet" ・Use Stick
Lesser Dog	【Details】 ATK: 12 DEF: 2【How to Spare】 ・Action: "Pet" ・Use Stick
Dogamy	【Details】 ATK: 14 DEF: 5【How to Spare】 ・Action: "Roll Around" → "Re-sniff" → "Pet" and then "Pet" Dogaressa ・Use Stick
Dogaressa	【Details】 ATK: 14 DEF: 5【How to Spare】 ・Action: "Roll Over" → "Sniff Again" → "Pet" and then "Pet" Dogamy ・Use Stick
Greater Dog	【Details】 ATK: 15 DEF: 8【How to Spare】 - "Call" or "Pet" -> "Pet" -> "Play" -> "Pet" -> "Pet" - Use Stick
Glyde	【Details】 ATK: Danger DEF: Danger Danger【How to Encounter】 Keep moving in front of the door for 3 minutes【How to Spare】 "Applaud" -> "Applaud" -> "Do nothing" -> "Do nothing" -> "Do nothing"
Mad Mew Mew ※Exclusive to Switch version	【Details】 ATK: 45 DEF: ??【How to Encounter】 Clear the Friendship Event with Papyrus and defeat Mettaton EX【How to Spare】 Avoid attacking until she listens to you

Boss

Monster	Details / How to Spare
Papyrus	【Details】 ATK: 20 DEF: 20【How to Spare】 Keep selecting "Spare" while avoiding attacks.

Waterfall

Encounter

Monster	Details / How to Spare
Woshua	【Details】 ATK: 18 DEF: 5【How to Spare】 ・Touch the green liquid. ・Action: "Clean" for at least one drop
Aaron	【Details】 ATK: 24 DEF: 12【How to Spare】 Use "Flex" three times
Moldsmal	【Details】 ATK: 12 DEF: 0【How to Spare】 Can be Spared from the beginning
Moldbygg	【Details】 ATK: 18 DEF: 18【How to Spare】 Select "Unhug" during the battle
Temmie	【Details】 ATK: ??? DEF: ???【How to Spare】 ・Action: "Talk" ・Action: "Flex" to make Aaron appear, spare Temmie ・Action: "Flex" on Aaron to make him fleel ・Give "Temmie Flakes" ・Equip "Temmie Armor"

Mid-Boss

Monster	Details / How to Spare
Shyren	【Details】 ATK: 19 DEF: 0【How to Spare】 Action: "Humming"
Mad Dummy ※N/P Route Only	【Details】 ATK: 30 DEF: ∞【How to Spare】 ・Keep letting other Dummies hit it with magic attacks ・Action: "Talk" then "Spare"
Glad Dummy ※G Route Only	【Details】 ATK: DEF: 【How to Spare】 You can Spare it from the beginning

Boss

Monster	Details / How to Spare
Undyne ※Exclusive to N/P Route	【Details】 ATK: 50 DEF: 20【How to Spare】 ・Keep enduring attacks ・Action: "Flee" when soul turns red during battle ・Continue until Hotland to end the battle.
Undyne the Undying ※Exclusive to G Route	【Details】 ATK: 99 DEF: 99【How to Spare】 Cannot be Spared.

Hotland

Encounters

Monster	Details / How to Spare
Vulkin	【Details】 ATK: 25 DEF: 0【How to Spare】 ・Action: "Encourage" then "Hug"
Tsunderplane	【Details】 ATK: 25 DEF: 26【How to Spare】 ・Action: "Approach" then touch the green aura around the plane 4 times
Pyrope	【Details】 ATK: 29 DEF: 14【How to Spare】 Action: "Heat Up" twice

Mid-Boss

Monster	Details / How to Spare
Mettaton	【Details】 ATK: 30 DEF: 255【How to Spare】 Cannot be Spared
RG01	【Details】 ATK: 30 DEF: 20【How to Spare】 Polish RG02's armor -> Touch the green armor 5 times -> Whisper to RG01
RG02	【Details】 ATK: 30 DEF: 20【How to Spare】 Polish RG02's armor -> Touch the green armor 5 times -> Whisper to RG01
Muffet	【Details】 ATK: 38.8 DEF: 18.8【How to Spare】 ・Action: Use "Spider Donut" or "Spider Cider" (spared instantly) ・Can be Spared after 17 turns
So Sorry	【Details】 ATK: - DEF: -【Appearance Method】 ・Visit the MTT Resort ・Only appears from 20:00 to 21:00 on October 10th【How to Avoid】 Action: "Draw" to drive away the Doodlebogs ・Continue to avoid attacks until So Sorry's drawing is complete.

CORE

Encounter

Monster	Details / How to Spare
Madjick	【Details】 ATK: 29 DEF: 24【How to Spare】 ・Action: "Stare" then select "Chaser Orb" or "Corner Orb" ・Action: "Clear Mind" then "Talk" to spare in the next turn ・Action: "Talk" to spare in the next turn, but the soul's movement will be inverted vertically and horizontally. You also lose one DF temporarily ・Use Stick
Knight Knight	【Details】 ATK: 36 DEF: 36【How to Spare】 Action: "Sing" three times
Whimsalot	【Details】 ATK: 34 DEF: 12【How to Spare】 Action: "Console"
Final Froggit	【Details】 ATK: 30 DEF: 24【How to Spare】 Action: "Mystify"
Astigmatism	【Details】 ATK: 32 DEF: 26【How to Spare】 ・Wait a turn or do neutral action first, to see monster's choice ・Action: "Pick on me" or "Don't pick on me" according to monster's choice.

Boss

Monster	Details / How to Spare
Mettaton EX ※Exclusive to N/P Route	【Details】 ATK: 47 DEF: 47【How to Spare】 Raise the viewer rating to 12,000 through actions ※After the 20th turn, raise it to 10,000
Mettaton NEO ※Exclusive to G Route	【Details】 ATK: 90 DEF: 9【How to Spare】 Cannot be Spared

True Laboratory

Monster	Details / How to Spare
Memoryhead	【Details】 ATK: - DEF: -【How to Spare】 Action: "CELL (phone)" on one monster, then choose "Refuse"
Endogeny	【Details】 ATK: - DEF: -【How to Spare】 Action: "Beckon" once, "Pet" once, "Play" once, and "Pet" twice in that order - Use the Stick
Lemon Bread	【Details】 ATK: - DEF: -【How to Spare】 Action: "Hum", "Flex," and "Un-hug" in any order
Snowdrake's Mother	【Details】 ATK: -12 DEF: -5【How to Spare】 Action: "Joke" three times
Reaper Bird	【Details】 ATK: - DEF: -【How to Spare】 Action: "Pick on", "Mystify", and "Pray" in any order

P Route "True Laboratory" Walkthrough

New Home

N Route

Monster	Details / How to Spare
Asgore	【Details】 ATK: 80 DEF: 80【How to Spare】 Cannot be Spared
Flowey *Limited to the first playthrough	【Details】 ATK: - DEF: -【How to Spare】 Cannot be Spared

P Route

Monster	Details / How to Spare
Asriel	【Details】 ATK: ∞ DEF: ∞【How to Spare】 Let Asriel morph into his final form. SAVE all NPCs including "Someone Else". Asriel stops attacking after shooting an unavoidable beam

Asriel's Walkthrough and How to Spare

G Route

Monster	Details / How to Spare
Sans	【Details】 ATK: 1 DEF: 1【How to Spare】 Cannot be spared

Guide and Defeat Strategy for Sans

Hard Mode

Encounter

Monster	Details / How to Spare
Moldessa	【Details】 ATK: 27 DEF: 23【How to Spare】 Action: "Fix"
Parsnik	【Details】 ATK: 30 DEF: 28【How to Spare】 "Snack" → Touch the green snack
Migospel	【Details】 ATK: 28 DEF: 17【How to Spare】 Reduce Migospel to one
Whimsalot	【Details】 ATK: 34 DEF: 12【How to Spare】 Action: "Console"
Final Froggit	【Details】 ATK: 30 DEF: 24【How to Spare】 Action: "Mystify"
Astigmatism	【Details】 ATK: 32 DEF: 26【How to Spare】 ・Wait 1 turn. ・Action: "Pick on" or "Don't pick on" depending on its request.

Guide on How to Play and Tips for Hard Mode