Giant Spaceship

The giant spaceship was the headquarters and mode of transportation of the Dark Matter Thieves. The ship possessed incredible firepower, capable of destroying the majority of A-City in an instant. It crashed after Saitama shattered its power source. Bofoi is confirmed to have taken possession of the ship and having moved it to a secret location. He is now trying to use it to develop new technology.

Appearance
In the manga and anime, the ship is shaped like a tooth. In the manga, the ship is colored Steel Black, in the anime it is Purple. The ship was massive in size; it was large enough to cast a shadow over the majority of A-City and was able to destroy 99.8% of the city with a single shell bombardment directed downward.

Trivia

 * In chapter 33 of the manga, Saitama is seen walking through a maze-like section of the spaceship. The drawing used as the map here is called "Papa's Maze", an incredibly detailed labyrinth created by Kazuo Nomura.