Borderlands 4: Conquer the Blacklime Bunker and Defeat the Core Observer

Q: Where is the Blacklime Bunker in borderlands 4?

The Blacklime Bunker is in The Howl, The Fadefields, near Zadra's meeting spot. Find the Locust container near the entrance, use it to open the cliffside door, and navigate the bunker to face the Core Observer boss. Exploit its weak eye and use Shock damage for an easier fight.

Q: How to open the Blacklime Bunker door?

The Blacklime Bunker is in The Howl, The Fadefields, near Zadra's meeting spot. Find the Locust container near the entrance, use it to open the cliffside door, and navigate the bunker to face the Core Observer boss. Exploit its weak eye and use Shock damage for an easier fight.

Q: How to defeat the Core Observer boss in borderlands 4?

The Blacklime Bunker is in The Howl, The Fadefields, near Zadra's meeting spot. Find the Locust container near the entrance, use it to open the cliffside door, and navigate the bunker to face the Core Observer boss. Exploit its weak eye and use Shock damage for an easier fight.

Q: What legendary loot does the Core Observer drop?

The Blacklime Bunker is in The Howl, The Fadefields, near Zadra's meeting spot. Find the Locust container near the entrance, use it to open the cliffside door, and navigate the bunker to face the Core Observer boss. Exploit its weak eye and use Shock damage for an easier fight.

Q: How to get to the Blacklime Bunker from Shut-Eye Keep Safehouse?

The Blacklime Bunker is in The Howl, The Fadefields, near Zadra's meeting spot. Find the Locust container near the entrance, use it to open the cliffside door, and navigate the bunker to face the Core Observer boss. Exploit its weak eye and use Shock damage for an easier fight.

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Walkthrough

1
Locate the Blacklime Bunker in The Howl, The Fadefields, near Zadra's initial meeting point.
2
The entrance is embedded in a cliff face. Travel northeast from the Shut-Eye Keep Safehouse.
3
Follow the cliffside southwest until you find a grapple spot.
4
Grapple and glide to a small cliff, then to a plateau in front of the bunker door.
5
Find the Locust container on this plateau.
6
Quickly glide back to the door and toss the container to open it.
7
Crouch/slide under a pipe to progress through the bunker.
8
In the room with water, double jump/glide from the entrance to the central platform.
9
From the central platform, double jump/glide to the spot with the button.
10
Press the button to open the door to the final section, which contains vending machines and the entrance to the boss room.

Boss Fight: Core Observer

Stats / Weaknesses:

Weak point: Small red eye in the middle (grants critical hits).
Effective Damage Type: Shock damage is highly effective.
Health Bars: Two blue health bars and one green health bar.

Phases:

Phase 1: The boss uses normal projectile spam. Strafe left and right or use cover. It can also launch cluster mines; be cautious of these.
Phase 2: The boss uses a beam attack. Hide behind cover until it finishes.
Final Health Bar: The boss performs a large attack where all shots ricochet. Hide behind cover and hope to avoid damage.

Strategy:

When the boss uses normal projectile spam, constantly move left and right or hide behind designated covers.
Be especially careful of the cluster mines it can shoot.
During the beam attack in the second phase, seek cover.
For the final health bar's ricocheting attack, hide behind cover and try to avoid being hit.
Aim for the small red eye in the middle of the boss for critical hits, which is especially effective with Jakobs weapons.
Utilize Shock damage due to the boss's health bar composition.

Core Observer can drop the following Legendary items: Defibrillator (Repkit), Divided Focus (Assault Rifle), Bully (Pistol).
You will also receive 40 SDU Tokens.
The boss can be refought for a fee.

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Order Bunker: Blacklime