Editing Boomsday Machine

|image=[[File:Boomsday Machine.png|250px]]<br>Artwork of the Boomsday Machine from ''[[Super Mario Galaxy 2]]''

|first_appearance=''[[Super Mario Galaxy 2]]'' ([[List of games by date#2010|2010]])

|species=[[Tank]]/[[Zap Nozzle]]/[[Fire Bar]]

{{quote|My {{color|blue|dad}}'s gonna get angry if I let [[Mario|you]] get another {{icon|SMG2-StarGrand}}... Time to break out my Boomsday Machine! I'll just relax in my comfy {{color|red|cockpit}} and watch you go BOOM!|Bowser Jr.|Super Mario Galaxy 2}}

The '''Boomsday Machine''' is a castle-like tank invented by [[Bowser Jr.]] that appears in ''[[Super Mario Galaxy 2]]''. The first part of its name is a portmanteau of the onomatopoeia "boom" and the word "doomsday." The machine has three [[Fire Bar]]s circling around it, and the top section has a spinning turret mechanism. The machine is fought in the galaxy [[Bowser Jr.'s Boom Bunker]]. The music heard during this battle is the same as in the [[Bowser Jr.'s Airship Armada]] battle.

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 the [[Grand Star]].

|Jpn=バトルキャッスル

|JpnR=Batoru Kyassuru

|JpnM=Battle Castle