Black Ops 6 Zombies – The Reckoning Easter Egg Full Guide
After months of build-up, The Reckoning is finally here - closing the curtain on the Black Ops 6 Zombies storyline. But don’t expect a quick, casual run. This is the most elaborate Easter egg yet, with multi-layered objectives, sneaky hidden events, and a runtime that can stretch past eight hours if you’re not laser-focused.
If you’ve been following the journey since Terminus, this guide will take you from your very first step to the final boss fight—no guesswork required.
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However, if you’d like to take on the challenge yourself, follow the step-by-step guide below.
Step 1 – Activate Pack-a-Punch
Open the map first – Clear as many doors around Project Janus HQ as you can to avoid backtracking later.
Unlock the elevator in the Executive Office and head down to Sublevel 10.
Power up the Particle Accelerator.
Destroy all 12 nearby Aetherium shards to spawn Pack-a-Punch.
Step 2 – Unlock the Gorgofex Wonder Weapon
In the Mutant Research Lab, check both static monitors for capital letters—combine them to find an element.
Look up its 3-digit atomic number on the periodic table (pad with a zero if needed).
Enter the code on the keypad in the Mutant Research Test Area to open the Bioweapons Lab.
Fill the cyst inside with Vermin kills.
Carry the filled cyst to the Quantum Computing Core and energize it with yellow spores.
Take it to Dark Entity Containment and start the power surge.
Activate all four surge panels to spawn Uber Klaus.
Destroy his shoulder pads, lure him to the panel, wait for the Forsaken transfer, then finish him off to get the Gorgofex.
Step 3 – Open the Secret Teleporter
In the T1 Mutant Research Lab, interact with the centrifuge to get a Syringe.
Go to T2 Sublevel 10, jump into the Particle Accelerator beam to knock down the floating zombie, and collect its Blood.
Return the Syringe to the centrifuge.
Defeat the spawning Fowler Mangler to get a Mutant Injection.
Scan it near Dark Entity Containment to unlock the next lab.
Step 4 – Build Franken Klaus
Shoot off both arms from Kommando Klaus units.
Find left and right legs in T2 Android Assembly (possible spots: behind a door, on a shelf, in scrap, behind a shattered mirror, or on the floor).
Attach all four limbs to the hanging Klaus in T2 Android Assembly.
Lure Uber Klaus here and bait its electric attack to power up Franken Klaus.
Franken Klaus will hack the computer in T2 Teleportation Lab, then a S.A.M. Trial machine, before returning to the Teleportation Lab.
In T1 Quantum Computing Core, break the metal container (melee attack with Melee Macchiato) to get a purple brain.
Deliver the brain to the machine beside Franken Klaus.
Step 5 – Find the Computer Code
Locate four Maxis personal items (out of six possible).
Katana – T1 Executive Suite desk
Wristwatch – T1 Executive Suite table
Combat Goggles – T1 Director’s Office lamp
BND Badge – T2 Teleportation Lab desk or T1 Executive Suite table
Notso’s Collar – T2 Teleportation Lab desk or T1 Director’s Office table
Scarf – T1 Director’s Office desk
Match each with its folder date, arrange in reverse chronological order, and form a 4-digit code.
Enter the code into the T2 Teleportation Lab PC.
Step 6 – Break the Teleporter Crystals
Return to the Pack-a-Punch room and activate the starting terminal.
Kill blue Vermin until a blue orb appears.
Collect it to turn your Wonder Weapon blue.
Fire a charged shot at the crystals in T2 Teleportation Lab to shatter them.
Step 7 – Get & Cleanse the Zombie Head
In spawn, melee the yellow mop bucket under the sprinkler.
In T1 Quantum Computing Core, shoot a charged Gorgofex shot into the wall gap with a white light.
Pick up the dropped Zombie Head.
Drop it into the mop bucket to cleanse it (it becomes a Soul Box).
Charge it with kills and place it in the T2 Teleportation Lab teleporter.
Step 8 – Power the Teleporter & Lock Down the Facility
In Tower 1, collect a Vacuum Seal Device.
Capture four floating purple-glowing objects by throwing the device.
Insert the devices into the T2 Teleportation Lab console.
Flip five switches from red to green as they light up.
Prepare for the final boss and interact with the teleporter.
Step 9 – Final Boss Choice
Side with Richtofen → Fight S.A.M. (easier).
Side with S.A.M. → Fight Uber Richtofen (harder).
Ground Floor
Charge three Aether Canisters with kills, then return to the elevator.
First Floor
Destroy purple crystals until prompted to move up.
Roof – Boss Fight
S.A.M.: Damage only when attacking or when red orbs appear.
Uber Richtofen: Damage most of the time, but avoid trap setups, Uber Klaus spawns, and heavy punches.
Stay mobile, keep distance, clear adds for armor drops, and chip away at health.
Victory
Once you drop your chosen boss, the final cutscene plays and The Reckoning is complete—bringing the Black Ops 6 Zombies saga to an end. Time to celebrate… and maybe take a break after those eight intense hours.
