List of rooms in Metroid Fusion/Main Deck

All the rooms in Metroid Fusion have explicit identification numbers visible through access with the Debug Menu. Within the Debug Menu, the values "H" and "G" are used to represent Samus's location on the BSL Station. The "H" Value represents which room Samus is located in, and the "G" value is used to represent the entrance Samus used in order to access the room. For the purposes of this list, the "H" value of the room will be listed first, followed by the "G" value of the first entry into a room, then the "G" values of other entrances in order of normal availability to the player. For example, the Operations Deck would be listed as "H014-G141 (G065, G027, G022, G193)".
If a proper name for the room exists, that name will be put first, followed by the room's "GH" value. Then a short description of the room will be given, possibly with a picture, as to allow for identification of the room. If the "G" value has a Security Lock over the Hatch, the "G" value will be labelled by a color corresponding to the Security Level if the door has a security level greater than 0. If a latent ability is required to use the entrance, an abbreviation for the upgrade will be placed next to the "G" value of the room, such as PB for Power Bomb or MB for Morph Ball. A majority of the room names are unofficial.
==Docking Bays==
Room ID: (H001-G000 (G001))
The first and last room entered in Metroid Fusion, where Samus enters the BSL Station and where she fights the Omega Metroid. Samus's Starship is located in this room and can always be used as a Save Station and Recharge Station.
;Items
:• None
;Connecting rooms
:• Docking Bays entrance (unlocked)
==Docking Bays entrance==
Room ID: H004-G002 (G007)
The room connecting the Docking Bay and the Docking Bay Access Shaft. Heavily damaged prior to the fight with the Omega Metroid.
;Items
:• None
;Connecting rooms
:• Docking Bays (unlocked)
:• Docking Bays access shaft (unlocked)
==Docking Bays access shaft==
Room ID: h007-g008 (g017, g013PB, g015)
Tall vertical shaft with large quantities of Screw Attack Blocks make up platforms leading to top. Top leads to rest of Main Deck. Power Bomb Blocks, and/or Red Hatch block off entrance to Central Reactor Core. While uninhabited during initial visits, a pupating Kihunter is seen on Samus' way to fix the Reactor Silo, which hatches after doing so. After Samus obtains the Screw Attack and reaches this room without using a Navigation Room, the door leading to the Starship will be locked. This was done by the Computerized Co., who was ordered to confine Samus, preventing her escape until the Galactic Federation arrived to the station.
Curiosly, there exists two unused spawning points for Samus in this room, as seen via a debug menu in a prototype build. One spawning point is directly opposite of the top-left open doorway, inside a solid wall. This spawn point is associated with the unused Docking Bay room and connecting hall (see unused rooms). Another spawn point is located directly below the wall, in a slightly indented portion of the right wall. While there is no room found to be associated with this spawn point, it is very likely that a door to a connecting room was to be featured in that particular area.
;Items
:• None
;Connecting rooms
:• Docking Bays entrance (unlocked)
:• Main Deck entrance (unlocked)
:• Reactor Silo access shaft (red hatch/power bombs)
==Main Deck entrance==
Room ID: h008-g014 (g019, g108PB)
The first "official" room of the Main Deck, normally leads to the rest of the Main Deck. This room is the exit to the Main Deck used after the Central Reactor Core shuts off. A Missile Expansion is located in this room, requiring the use of Power Bombs to access it.
;Items
:• Missile Tank (power bombs)
;Connecting rooms
:• Docking Bays access shaft (unlocked)
:• Main Deck west wing stairwell (unlocked)
:• Main Elevator maintenance tunnel (speed booster/power bombs)
==Main Deck west wing stairwell==
Room ID: h019-g036 (G039, G038, g021, g132PB, g203SA)
This room is the last room passed through before accessing the first Navigation Room in the Main Deck. The rest of the room contains 2 Green Doors at the top, a door leading to the Operations Deck below it, and a secret Morph Ball passage, requiring Bombs to access, and the Screw Attack to use. After returning to the Main Deck once acquiring Ice Missiles, a cyan Geron will be blocking the top right door, though this can be destroyed early via a difficult Shinespark to perform a Sequence Break to get early Power Bombs, though they will not be usable until the upgrade is acquired in Sector 5 (ARC).
Items
:• None
Connecting rooms
:• Main Deck entrance (unlocked)
:• Navigation Room 1 (unlocked)
:• Save Room 1 access (gray hatch)
:• Elevator to Habitation Deck (green hatch)
:• Item depot 6 (green hatch, cyan Geron)
:• Stairwell to research divisions (screw attack)
==Navigation Room 1==
Room ID: (H017-G033 (G037)
The first Navigation Room encountered by Samus, used on multiple occasions throughout Metroid Fusion.
Items
:• None
Connecting rooms
:• Main Deck west wing stairwell (unlocked)
:• Stairwell to research divisions (unlocked)
==Stairwell to research divisions==
Room ID: H021-G042 (G043, G104, G168MB)
This room is passed through many times to access the Quarantine Bay, and the Main Elevator. There is a Morph Ball Passage leading to another room with a Missile Expansion, as well as Sub-Zero Containment on the bottom left of the room.
Items
:• None
Connecting rooms
:• Navigation Room 1 (unlocked)
:• Quarantine checkpoint (unlocked)
:• Sub-Zero Containment (gray hatch)
:• Item depot 3 (morph ball)
:• Main Deck west wing stairwell (screw attack)
==Quarantine checkpoint==
Room ID: (H024-G048 (G166, G074MB))
The room directly before the Quarantine Bay. It also leads to the Main Elevator, but the passage is partially collapsed and requires use of the Morph Ball or Speed Booster to pass through.
Items
:• None
Connecting rooms
:• Stairwell to research divisions (unlocked)
:• Quarantine Bay (unlocked)
:• Access to Main Elevator (gray hatch)
==Quarantine Bay==
Room ID: (H072-G167)
This room is the first room to contain an enemy. When it is first entered the door will lock and will not open until the Hornoad is defeated. After this point, the room serves no purpose.
Items
:• None
Connecting rooms
:• Quarantine checkpoint (unlocked)
==Save Room 1 access==
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Room ID: (H071-G164 (G165))
This is the first room that has a Gray Hatch over it that must be entered. It has a Hornoad in it until Arachnus is defeated. The room leads to the first Save Room in the game.
Items
:• None
Connecting rooms
:• Main Deck west wing stairwell (gray hatch)
:• Save Room 1 (gray hatch)
==Save Room 1==
thumb|140x140px
Room ID: (H034-G041 (G073))
The first Save Room found in the game. It is disabled during the final escape sequence.
Items
:• None
Connecting rooms
:• Save Room 1 access (gray hatch)
:• Main Deck east wing stairwell (gray hatch)
==Main Deck east wing stairwell==
thumb|139x139px
Room ID: (H022-G045 (G044, G091, G029M))
This room has multiple zombie researchers in it during early stages of the game. The room leads to a Navigation Room, Save Room, and Recharge Room, as well as serving as an exit point after the fight with Arachnus.
Items
:• None
Connecting rooms
:• Save Room 1 (gray hatch)
:• Main Deck Recharge Room (green geron, gray hatch)
:• Navigation Room 2 (gray hatch)
:• East wing ventilation (morph ball)
==Navigation Room 2==
Room ID: ???
One of the Navigation Rooms on the Main Deck. Due to its position, this room potentially has less usage than the first one Samus encounters.
Items
:• None
Connecting rooms
:• Main Deck east wing stairwell (gray hatch)
:• East wing lobby A (gray hatch)
==East wing lobby A==
File:EastWingLobbyA1.png
File:Capture.png
Room ID: ???
Two Zombie researchers are here in early stages of the game. While Samus can take the lower path to the right, it is blocked beyond the door by destroyed power cables.
Items
:• None
Connecting rooms
:• Navigation Room 2 (gray hatch)
:• Elevator to Operations Deck (gray hatch)
:• East wing lobby bridge
==East wing lobby bridge==
Room ID: ???
Access to the other side of the room has been cut off by large, destroyed cables. Behind the room, a passageway can be seen but not accessed from here.
;Items
:• None
;Connecting rooms
:• East wing lobby A (gray hatch)
:• East wing lobby B (gray hatch)
==Transport to Operations Deck==
File:OperationsToMain.png
File:TransportToOperations.png
Room ID: ???
An elevator that connects the Operations Deck with the rest of the Main Deck.
Items
:• None
Connecting rooms
:• East wing lobby A (gray hatch)
:• Operations Deck (gray hatch)
==Operations Deck==
MF Operations Deck.png|Full view
Operations Deck (Prototype).png|Prototype variant of the room. 
Room ID: h086-g204 (g146,
A very large room with viewports out to space. After first acquiring Missile data, the elevator down loses power and Samus has to find another way out through ventilation shafts. At the end of the game, Samus returns here and battles the SA-X on her way to the Operations Room to crash the station into SR388.
Items
:• None
Connecting rooms
:• Elevator to Operations Deck (gray hatch)
:• Operations Deck Recharge Room (gray hatch)
:• Operations Deck Navigation Room (gray hatch)
:• Operations Deck ventilation shaft (missiles)
:• Operations Room (red hatch)
==Operations Deck Recharge Room==
Room ID: ???
The Recharge Room on the Operations Deck.
Items
:• None
Connecting rooms
:• Operations Deck (gray hatch)
:• Operations Deck Save Room (gray hatch)
==Operations Deck Save Room==
Room ID: ???
The Save Room on the Operations Deck.
Items
:• None
Connecting rooms
:• Operations Deck Recharge Room (gray hatch)
==Operations Deck Navigation Room==
Room ID: ???
The Navigation Room on the Operations Deck. After obtaining Missiles, the power to the elevator shuts off, forcing Samus to find an alternate route out of the area.
Items
:• None
Connecting rooms
:• Operations Deck (gray hatch)
:• Operations Deck Data Room (gray hatch)
==Operations Deck Data Room==
Room ID: ???
The Data Room on the Operations Deck.
Items
:• Missiles (download)
Connecting rooms
:• Operations Deck Navigation Room (gray hatch)
==Operations Room==
==Operations Deck ventilation shaft==
Room ID: ???
A green Geron blocks Samus' path downwards, showing her that they can be destroyed with missiles. A zombie researcher is also crawling around this room. Both pit blocks and ladders are introduced in this room. On her way down, Samus passes behind the destroyed cables in East wing lobby bridge. At the bottom, a Missile Tank in plain view and another zombie await.
;Items
:• Missile Tank
;Connecting rooms
:• Operations Deck
:• Item depot 1
:• East wing lobby B
==Item depot 1==
Room ID: ???
Holds a Missile Tank that can be obtained by shooting the higher corner on the floor.
;Items
:• Missile Tank (hidden)
;Connecting rooms
:• Observation Deck ventilation shaft
==East wing lobby B==
Room ID: ???
Two Zombie researchers are on the bottom floor, while a Gadora covers the door forward to the room with Arachnus-X. Unlike most of the zombies, these ones persist through the end of the game. The upper door on the left reveals to be the other side of East wing lobby bridge.
;Items
:• None
;Connecting rooms
:• #Operations Deck ventilation shaft
:• East wing lobby bridge (gray hatch)
:• Save Room 2 (gray hatch)
:• Cargo bays
==Arachnus' chamber==
Room ID: ???
The "Arachnus' chamber" is a room on the Main Deck. It appears in Metroid Fusion.
Items
:• Energy Tank
:• Morph Ball
Connecting rooms
:• East wing lobby B (Gray Hatch)
:• Item depot 2 (Missiles)
:• East wing ventilation (Gray Hatch)
==Item depot 2==
Room ID: ???
Holds an Energy Tank.
;Items
:• Energy Tank (missiles)
;Connecting rooms
:• Cargo bays
==East wing ventilation==
Room ID: ???
A series of Ladders and Morph Ball tunnels lead Samus back to the rest of the Main Deck. Two Zombie researchers can be found here, but they disappear after a certain point in the game.
;Items
:• None
;Connecting rooms
:• Cargo bays
:• Main Deck east wing stairwell
==Main Deck Recharge Room==
Room ID: ???
One of two Recharge Rooms on the Main Deck.
Items
:• None
Connecting rooms
:• Main Deck east wing stairwell (gray hatch)
==Sub-Zero Containment==
Room ID: ???
The room is very cold, enough to harm Samus' energy supply if she has not obtained the Varia Suit. Through the main entrance, the room's contents can't be seen until she has moved forward; behind a sealed wall lies the frozen corpse of Ridley. Samus can't do anything to interact with him until later in the game.
When she enters this room after the Reactor Silo goes offline and cuts off power to many of the station's systems, an Core-X can be seen leaving Ridley's body, whose empty ice shell then collapses. The X then flies off out of the room and Samus continues on.
;Items
:• None
;Connecting rooms
:• Stairwell to research divisions (gray hatch)
:• Main Elevator vent
:• Main Elevator maintenance tunnel
==Item depot 3==
Room ID: ???
Holds a Missile Tank
;Items
:• Missile Tank (morph ball)
;Connecting rooms
:• Stairwell to research divisions
==Access to Main Elevator==
Room ID: ???
A long walkway to the Main Elevator that can build up the Speed Booster once obtained.
;Items
:• None
;Connecting rooms
:• Quarantine checkpoint (gray hatch)
:• Main Elevator (gray hatch)
==Main Elevator==
Room ID: ???
The main hub that serves to connect the Main Deck with each of the Sectors. When Samus first arrives at the bottom access shaft, the power goes down, preventing her from returning up to investigate the SA-X that had appeared mere moments after she left the room above.
;Items
:• None
;Connecting rooms
:• Access to Main Elevator (gray hatch)
:• Elevator 1 (gray hatch)
:• Elevator 2 (gray hatch)
:• Item depot 4 (sealed until destroyed by SA-X)
==Elevator 1==
Room ID: ???
Transport to Sector 1 (SRX).
;Items
:• None
;Connecting rooms
:• Main Elevator (gray hatch)
:• Elevator 1 (elevator)
:• Elevator 3 (blue hatch)
==Elevator 2==
Room ID: ???
Transport to Sector 2 (TRO).
;Items
:• None
;Connecting rooms
:• Main Elevator (gray hatch)
:• Elevator 2 (elevator)
:• Elevator 4 (blue hatch)
==Elevator 3==
Room ID: ???
Transport to Sector 3 (PYR).
;Items
:• None
;Connecting rooms
:• Elevator 1 (blue hatch)
:• Elevator 3 (elevator)
:• Elevator 5 (green hatch)
==Elevator 4==
Room ID: ???
Transport to Sector 4 (AQA).
;Items
:• None
;Connecting rooms
:• Elevator 2 (blue hatch)
:• Elevator 4 (elevator)
:• Elevator 6 (green hatch)
==Elevator 5==
Room ID: ???
Transport to Sector 5 (ARC).
;Items
:• None
;Connecting rooms
:• Elevator 3 (green hatch)
:• Elevator 5 (elevator)
==Elevator 6==
Room ID: ???
Transport to Sector 6 (NOC).
;Items
:• None
;Connecting rooms
:• Elevator 4 (green hatch)
:• Elevator 6 (elevator)
==Yakuza's Chamber==
Room ID: h087-g003
Yakuza's room full view.png|Full view
Yakuza Room Prototype (fullview).png|Prototype room
Main article: Yakuza's room
This is the room where Samus must face off against Yakuza. Samus lands on a small ledge upon entering but can immediately drop into the lowest part of the floor. She appears to be stuck all alone until she hears a large creature attacking her from above. Yakuza soon reveals itself and a battle ensues, where Samus emerges victorious and absorbs the Core-X containing the Space Jump, allowing her to escape the large pit she fell into. The concealed chamber to the top-left is revealed upon Yakuza's defeat, hinting at Samus to proceed Westward into the Auxiliary Power Station. 
==Restricted Zone Storage Room==
A small storage like room with tall tank-like objects in the background. This is the official first room of the Restricted Zone that Samus enters in. If one looks close enough at the background, the words/letters Level-X (L-X) can be seen etched on the walls.
Samus reaches through this room from a small Morph Ball vent inside this room leading from Sector 6 (NOC), after she has bypassed the large shutter from Sector 6. Once reaching the far left, she immediately plummets from Crumble Bricks and lands in this small storage like room. Now able to return to bipedal form, Samus continues to explore this mysterious Restricted Zone.
To the right of the Crumble Blocks are a row of hidden 5x2 Screw Attack blocks. Once the Screw Attack has been obtained, the blocks can be destroyed, allowing Samus to return to Sector 6 from here. 
==Level X Save Room==
Room ID: h065-g147 (g148)
The lone Save room stationed within the Restricted Zone. As with all other rooms located in the Restricted, the doors to this room are sealed by Level 4 Security Hatches. Samus passes through this room as she further explores down the halls of the Restricted Zone.
==Restricted Zone Computer Corridor==
Room ID: h 
A long hallway lined with two computers and what appears to be accompanying power boxes for the devices. A storage tank is also located here to the right, suggesting some research or studies may have been conducted within this room. With little to no importance or activity in this room, Samus simply continues Westward as she further explores the Restricted Zone.
The Save room is located through the eastern Level 4 door. This room bears a slight resemblance to some of the halls found within Ceres Space Colony and may have been built in a similar fashion.
==Air Lock Hallway==
Room ID: h 
==Restricted Laboratory Main Lab==
Restricted Laboratory Main Room.png|Pre-Crash
Restricted Laboratory Main Room Crash.png|Post Crash
Room ID:
==Metroid Research Hall==
thumb|right|150px
Room ID: h 
Category:Main Deck