Boomsday Machine
Artwork fromSuper Mario Galaxy 2
Species	Tank/Zap Nozzle/Fire Bar
First appearance	Super Mario Galaxy 2 (2010)
Latest appearance	Super Mario Galaxy + Super Mario Galaxy 2 (2025)

“Mydad's gonna get angry if I letyou get another... Time to break out my Boomsday Machine! I'll just relax in my comfycockpit and watch you go BOOM!”

—Bowser Jr.,Super Mario Galaxy 2

TheBoomsday Machine is a castle-like tank invented byBowser Jr. that appears inSuper Mario Galaxy 2. The first part of its name is a portmanteau of the onomatopoeia "boom" and the word "doomsday." The machine has threeFire Bars circling around it, and the top section has a spinning turret mechanism. The machine is fought in the galaxyBowser Jr.'s Boom Bunker. The music heard during this battle is the same as in theBowser Jr.'s Airship Armada battle.

There are ampleCloud Flowers around the area to grab. The player must useCloud Mario's ability to ascend the battlefield and get to the top of the Boomsday Machine. For the first round, the player mustrun for one of the updrafts and thenspin to create a cloud and ride it upwards. From there,Mario can traverse across the various clouds scattered throughout the battlefield, using his cloud-making ability to assist himself. Once the player reaches the top of the tower, they must damage the machine byground-pounding the glass. If Mario stands on the glass cockpit for too long, Bowser Jr. will spin his launcher to knock Mario off.

The second round is much like the first, but now the tower attempts to vacuum the area, pulling the clouds out from under the player's feet. The player should still be able to justlong-jump to the top of the tower in the same manner. The player also needs to watch out for an electric shield that covers Bowser Jr.'s dome periodically when he is sucking up clouds.

In the final round, the tower goes mobile. This makes the player's climb to the top more difficult, since Bowser Jr.'s cockpit is much higher up. The player still needs to avoid coming in contact with the yellow projectiles, the spinning fire wheel, and the vacuum attack. The fire on the Boomsday Machine also destroys the player's clouds. Once the player reaches the top of an updraft, they need to use the Cloud Flower refill to get to an even higher cloud tier. They should use long jumps to get to the distant cloud, and they can score another refill. From there, the player can reach the dome with their cloud platform recharge. Once the player arrives at the glass dome, they must ground-pound it a third time, which destroys the machine and reveals theGrand Star.

Mario faces this boss twice, with the second match being under aDaredevil Comet's conditions.

Statistics[edit]

Boomsday Machine
	World	World 5	Galaxy	Bowser Jr.'s Boom Bunker
	Missions	Bowser Jr.'s Boomsday Machine Boomsday Machine Daredevil Run	Rewards

Gallery[edit]

• 

  Cloud Mario fighting the Boomsday Machine in its initial phase

• 

  Cloud Mario fighting the final form of the Boomsday Machine

Naming[edit]

Internal names[edit]

Names in other languages[edit]

References[edit]

• Tanks
• Cannons
• Towers
• Super Mario Galaxy 2 bosses