The base is a two-level square-shaped room. A vent is found in the left wall, separated by four walls with a small hole at their base. It can be seen through three transparent windows. The third section of this tunnel contains a Missile Tank. In the center of the top floor is a cylindrical structure displaying holographic information around its front and sides. The back of the structure is open and it conceals a shaft that can be Kick Climbed to reach a hidden ledge, with a tunnel entrance. The wall up here notably has a a pattern of tiles in the rough shape of hexagonal squares, with a proper hexagon at each tile's corners. Samus can enter the tunnel to drop behind the wall of the top floor and reach the Missile Tank. To leave, she can roll to the end of the wall vent to enter another tunnel that drops her to the lower floor.
On the lower floor, an array of computer terminals and desks can be found displaying information. They are surrounded by three large screens mounted on the walls, which display schematic information, and a lone wall with a screen that displays scrolling text. In between the desks are three glass panes in the ground. Samus can destroy the one in the center with a Missile or Bomb to access another Missile Tank in the floor. She can return to the top floor via a staircase.
Visiting this room is entirely optional, and it can only be accessed in the post-credits sequence. It is accessible from the control room; during Samus's initial visit to that room, Samus corners Madeline Bergman in front of the door to the lower floor, which is locked. The upper doors appear to be open, but are not reachable at the time.
The bottom floor of the room is witnessed in flashbacks while Samus and Madeline are discussing MB, who was shown to be demonstrating her research into artificial intelligence in this room. This was also where she began to turn against the humans. There is a round-table during these scenes that is not present in the room explored in-game.
|“||MB: If my theory is correct, this is going to be a ground-breaking multi-system for artificial intelligence.
MB: ... and we waste time even talking about it! ...
Scientist: Whatever this theory is ancient.
MB: ... I will show you! I will complete this system all by myself!
This room is attached to a long, L-shaped corridor with a staircase that connects to a larger room with screens.
- Page 160
- "Return to the Bioweapons Research Lab and take the stairs on the left side of the room with the FG-1000 robots. Follow the route to a room with a holographic structure at the center and stairs leading to a lower level. Go down the stairs. On the far right side of the room are two rows of computer consoles separated by three hexagonal glass planes on the ground. Drop into Morph Ball mode and roll over to the glass floor sections and blow up the middle one with a Normal Bomb. The Missile Tank is hidden underneath the glass."
- Page 161
- "Return [to] the Bioweapons Research Lab and take the stairs on the left side of the room with the FG-1000 robots. Follow the route to a room with a holographic structure at the center and stairs leading to a lower level. Go to the north side of the structure at the center of the room and turn around to find that part of the structure is missing. Leap into the center of the holographic centerpiece and then Kick Climb up into a small vent-like area. In Morph Ball mode, roll into the vent to the other side of the room where you find the Missile Tank."