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Points of Interest
The Compression Chamber is an eastern annex to the central shaft of Tycho's Ribs.
At the entrance of the annex can be found an ECHO recorder.
There are a number of enemy spawns in the chamber, and once these have been dispatched a door to a storage chamber opens at the back. The store room contains four small, and one large, Dahl weapon chests, and several ammo crates.
The Exhaust Port is a small annex to the south-east of the central shaft. It has a number of enemy spawns but is mostly unremarkable. Although the map gives the appearance that the room can be skipped, it cannot. The only way through is through the area's inhabitants.
There are five ammo crates and one white Dahl weapon chest. A Crystal Skull can also be found here.
At the exit of this chamber is a jump pad which can be used to reach Maintenance Access 42.
Maintenance Access 42
Z8N-TP is here. Some ammo crates and a white Dahl weapon crate can be found here.
A Crystal Skull can also be found here, and a Cult of the Vault symbol.
Particle Collection Chamber
- Game Spoilers! Expand at readers own risk.
One of the elevators in the central room has no force field at the top. If the vault hunters ride it up through the top, they are instantly teleported to the Secret Mario room easter egg - a pixellated area reminiscent of the Super Mario Bros. arcade game, with its own background music.
A corridor from the first room in this area leads to a larger arena with floating bricks and various purple pipes, from which spawn several Lost Legion and Guardians in waves. If the vault hunters defeat these waves, an exit opens at the far end of the arena, leading to a room with a red chest and an exit pipe porting the character to the foot of the entry elevator.
If the vault hunter instead uses the floating bricks in the arena to gain height, they can ultimately reach the top of the room, and a ridge that passes the exit room and reaches a farther exit room with three exit pipes and another red chest. The center leads to the foot of the third (just like the exit in the previous room), while the left and right pipes put the vault hunter on the first elevator in the main area.