Bunker

"You seem a bit tense, son. Relax! We're perfectly safe here in this impenetrable Bunker."

- Professor Elvin Gadd

The Bunker is Professor E. Gadd's shelter from the hostile ghosts on the Nintendo 3DS game Luigi's Mansion: Dark Moon. The bunker's exterior resembles E. Gadd's original lab in Thwomp Volcano in Mario and Luigi: Partners in Time.

It is also where E. Gadd pixelates Luigi from his home and all mansions in the game. This is apparently the only place where ghosts cannot enter. Here, E. Gadd and Luigi can search the Dark Moon pieces and repair key objects that were broken. It is full of screens. A platform in the floor with a pipe takes ghosts and money to the Vault. There is also the device E. Gadd uses to clean the Dark Moon pieces.