Whacka is a secret boss you can fight in Paper Mario: The Thousand-Year Door (TTYD). Read on to learn more about this boss, its stats, and how to beat it!

Whacka Location

Found on the Back of the Ship in Keelhaul Key

Whacka appear when you approcah them the empty space behind the ship in Keelhaul Key. Hitting a Whacka will give a Whacka Bump, which restores a large amount of HP.

Revive 7 Times by Moving Areas

Whacka can revive up to seven times each time you move in between areas, so the Whacka Bumps you can get by hitting them are a valuable item, with only eight of them available in total.

Whacka Will Appear on the 100th Floor of the Pit of 100 Trials

Whacka will appear on the 100th floor of the Pit of 100 Trials if the conditions for its appearance are met.

How to Fight Whacka

Complete the Game

In order to make Whacka appear, you need to enjoy the story and finish the game first.

All Chapters Walkthrough

Clear the Pit of 100 Trials Once

In order to make Whacka appear, you need to clear the Pit of 100 Trials once, and defeat Bonetail on the 100th floor.

Beat Whacka Until It Stops Appearing

You also need to whack the blue mole with your hammer several times in Keelhaul Key before it can appear at the end of the Pit.

Receive Email

After completing the previous three actions, Mario will receive an email that says a mystical creature has been seen deep in the Pit of 100 Trials.

Return to 100th Floor in the Pit of 100 Trials

After reading the email, go to the bottom of the Pit of 100 Trials and you will find Whacka waiting for you.

Whacka Details and Stats

Tattle Log No. 133
Whacka
Description	A Whacka mole found in Keelhaul Key. Appears as a secret boss.
Type	Secret Boss

All Enemies in Paper Mario TTYD

Stats

HP	108
Atk	10
Def	1

How to Defeat Whacka

1. Only Use Single Hit Attacks
2. Use Vivian's Veil to Avoid Red Bump
3. Use Power Lift to Increase Attack and Defense Powers
4. Do Not Use Fire Attacks
5. Bring Life Shrooms

Only Use Single Hit Attacks

Recommended Single Hit Attacks
Power Jump	Power Smash
Flurrie's Lip Lock	Bobbery's Bob-ombast

Only use single hit attacks against Whacka due to it dropping a Whacka Bump each time it gets hit. It can either attack with the Whacka Bump or recover HP by eating it. 

Note that the more hits Whacka takes, the more Whacka Bumps appear for him to use against you.

Bumps Can Drop Even If You Don't Damage Whacka

Do note that Whacka Bumps can still drop even if you don't damage Whacka himself, which can happen if it damages itself or gets hit by stage props.

Use Vivian's Veil to Avoid Red Bump

Types of Whacka Bumps	Details
Whacka Bump	When used for attacking: 10 damage When used for healing: +25 HP
Red Whacka Bump	When used for attacking: 27 damage When used for healing: +75 HP

Whacka Bumps that appear have different effects when used depending on the type, with the red bump being the more powerful one.

You can avoid getting hit by the powerful Whacka Red Bump, thrown by Whacka, by using Vivian's Veil move.

Using Superguard is also Very Effective

You can deflect the Whacka Bumps by using Superguard. This is also effective against Red Whacka Bump attacks.

How to Guard and Superguard

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 Whacka's attacks. Once your attack power is increased, use your single target attacks to deal high amounts of damage.

Goombella's Rally Wink is Very Effective

In conjunction with raising Mario's stats, you can also use Goombella's Rally Wink to force Mario to move twice. This is useful to attack with single hit moves twice in one turn.

Do Not Use Fire Attacks

Whacka will also produce Whacka Bumps while getting damaged by burned status effect. Avoid using Vivian's fire moves or any items or badges that can apply burned status effect.

Bring Life Shrooms

It is highly recommended to bring as many Life Shrooms as you can because the battle with Whacka involves a lot of luck, such as multiple red bumps appearing or bumps increasing due to random stage effects.

Whacka Reward

Golden Whacka Bump

After defeating Whacka, you will get an important item, Golden Whacka Bump. This is a key item and has no in-battle effect.

Gold Whacka Bump Effect and How to Get

Paper Mario: The Thousand-Year Door Related Guides

All Bosses

All Bosses

Paper Mario TTYD Bosses
Chapter Bosses	Mini Bosses	Secret Bosses

Secret Boss List

All Bosses
Atomic Boo	Bonetail	Gus	Prince Mush
Whacka