This survey will take about 1 minute.
Your answers will help us to improve our website.
Paper Mario: The Thousand-Year Door (TTYD)
How to Defeat Atomic Boo
★ TTYD Switch Remake is now available!
┗ Remake Differences | New Gold Medal Badge!
★ Tips for Beginners | Secrets and Combat Tips
┗ How to Level Up Fast | How to Farm Coins
☆ Best Moves | Best Partners | Best Badges
★ All Walkthroughs | All Star Pieces | All Shine Sprites
Shake off the Boos in Creepy Steeple several times to fight Atomic Boo in Paper Mario: The Thousand-Year Door (TTYD). Read on to learn more about this boss, its stats, and how to beat it!
List of Contents
How to Fight Atomic Boo
Shake Off Boos in Creepy Steeple
| 1. |
 At the entrance hall room in Creepy Steeple, push the star statue to reveal a secret hole. After going down the hole, go through the door on the left, then open the chest at the center of the room. |
|---|---|
| 2. |
Once opened, 200 Boos will come out of it and the last Boo will ask you a question. If you answer 200 Boos, will get an Ultra Shroom as a reward. |
| 3. |  Afterwards, use the spring in the room on the right to come back up in the entrance hall. |
| 4. |  Talk to Atomic Boo in the entrance hall and choose No Bullying. |
| 5. |  Spin your Hammer to shake off the Boos several times, and then you will enter the battle with Atomic Boo. |
Creepy Steeple Collectibles, Enemies, and Points of Interest
Get a Lucky Start Badge as a Reward
Upon defeating Atomic Boo, the big ghost will drop a Lucky Start badge as a reward.
List of Badges in Paper Mario TTYD
How to Beat Atomic Boo
- Get Vivian First
- Hide From Boo's Powerful Attack with Vivian's Veil
- Use Power Lift to Increase Attack and Defense Powers
Get Vivian First
It is highly recommended to have Vivian join your party first before fighting Atomic Boo. Atomic Boo is also weak to fire moves, so Vivian's Shade Fist and Fiery Jinx moves are actually very effective against the big ghost.
Note that Vivian will join your party while progressing through Chapter 4.
Hide From Boo's Powerful Attack with Vivian's Veil
The moment Atomic Boo hides its face, the big ghost will unleash a powerful attack the next turn, which can be avoided by using Vivian's Veil move to hide in the shadows.
Use Power Lift to Increase Attack and Defense Powers
You can use the Power Lift special move to increase your attack and defense powers to reduce the damage from Atomic Boo's attacks. Once your attack power is increased, use Power Bounce to deal high amounts of damage.
Atomic Boo Details and Stats
| Tattle Log No. 75 | |
|---|---|
 Atomic Boo
|
|
| Description | A massive creature made up of countless Boos. It attacks by breaking apart and sending out hundreds of Boos. |
| Type | Secret Boss |
All Enemies in Paper Mario TTYD
Stats
| HP | 40 |
|---|---|
| Atk | 4 |
| Def | 0 |
Move Resistances
| Move Resistances | ||
|---|---|---|
Jump 
|
Hammer
|
Showstopper 
|
| Gulp
|
Gale Force
|
Kiss Thief
|
Status Effect Resistances
| Status Effect Resistances | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Burn 
|
Freeze
|
Dizzy
|
Confuse
|
Sleep
|
|||||||||||||||
| Soft
|
Shrink 
|
Fright Mask
|
Time Stop
|
||||||||||||||||
Paper Mario: The Thousand-Year Door Related Guides
All Bosses
| Paper Mario TTYD Bosses | ||
|---|---|---|
 Chapter Bosses |
 Mini Bosses |
 Secret Bosses |
Secret Boss List
| All Bosses | |||
|---|---|---|---|
|
Atomic Boo
|
 Bonetail
|
 Gus
|
 Prince Mush
|
 Whacka
|
|||
Comment
Author
Paper Mario: The Thousand-Year Door (TTYD) Walkthrough & Guides Wiki
How to Defeat Atomic Boo
Please participate in our site
improvement survey
12/2025
improvement survey
12/2025
Would you assist in
improving Game8's site?
improving Game8's site?
×
We are listening to our users' valuable opinions and discussing how to act on them.
The information collected through this survey will be used for the purpose of improving our services. In addition, the information will only be disclosed a part of a statistic in a format that will not allow identification of personal information.
Begin Survey
Not Now
×
Please rate each item regarding Game8.co's Advertisements.
Amount of Ads
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Placement of Ads
Timing of Ad Display
Ad Loading Speed
Safeness of Ads
Content of Ads
×
Please rate each item regarding Game8.co's Quality of Articles.
Amount of information
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Frequency of updates
Speed of new information
Accuracy of articles
Understandibility of articles
Readability of sentences
×
Please rate each item regarding Game8.co's Usability of the Site.
Ease of finding information
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Loading Speed
Use of Color
Font Size
Visibility of Images
Easy to Understand Layout
×
Please rate each item regarding Game8.co's Message Boards, Comments.
Ease of Writing
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Readability
Ease in Finding Information
Comment Quality
Comment Quantity
Admin Response
×
Please rate each item regarding Game8.co's Site's new design.
Please rate our site's new design
Very Dissatisfied
Somewhat Dissatisfied
Fine
Somewhat Satisfied
Highly Satisfied
Do you think that the website's design change makes the site easier to use?
Has the new design made it easier for you to find information on the site?
Has the new design improved the overall visual appeal of the site?
How would you rate your overall satisfaction with the new design of the site?
×
How likely are you to recommend Game8 to someone you know?
Very Unlikely
0
1
2
3
4
5
6
7
8
9
10
Very Likely
If you have other opinions regarding potential improvement to the website, please share them with us. We would appreciate your honest opinion.
Note: This is a free response section, so you can proceed without entering anything.
Note: Please be sure not to enter any kind of personal information into your response.
Note: Please be sure not to enter any kind of personal information into your response.
×
Thank You
×
Thank you for participating in our survey! Your answers will help us to improve the quality of our website and services.
We hope you continue to make use of Game8.
We hope you continue to make use of Game8.
Close
Rankings
- We could not find the message board you were looking for.
Gaming News
Popular Games
Genshin Impact Walkthrough & Guides Wiki
Umamusume: Pretty Derby Walkthrough & Guides Wiki
Where Winds Meet Walkthrough & Guides Wiki
Honkai: Star Rail Walkthrough & Guides Wiki
Digimon Story: Time Stranger Walkthrough & Guides Wiki
Wuthering Waves Walkthrough & Guides Wiki
Zenless Zone Zero Walkthrough & Guides Wiki
Pokemon TCG Pocket (PTCGP) Strategies & Guides Wiki
Pokemon Legends: Z-A Walkthrough & Guides Wiki
Clair Obscur: Expedition 33 Walkthrough & Guides Wiki
Recommended Games
Diablo 4: Vessel of Hatred Walkthrough & Guides Wiki
Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki
Yu-Gi-Oh! Master Duel Walkthrough & Guides Wiki
Elden Ring Shadow of the Erdtree Walkthrough & Guides Wiki
Super Smash Bros. Ultimate Walkthrough & Guides Wiki
Monster Hunter World Walkthrough & Guides Wiki
Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki
The Legend of Zelda: Tears of the Kingdom Walkthrough & Guides Wiki
Persona 3 Reload Walkthrough & Guides Wiki
Cyberpunk 2077: Ultimate Edition Walkthrough & Guides Wiki
All rights reserved
© Nintendo. Games are property of their respective owners. Nintendo of America Inc. Headquarters are in Redmond, Washington, USA
The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
The contents we provide on this site were created personally by members of the Game8 editorial department.
We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.