
Call of Duty: Black Ops 6 has recently rolled out an extensive content update with the launch of Season 2. This update includes new gameplay features like the Lifeline and Bounty maps, the introduction of fan-favorite modes such as Gun Game, and the addition of fresh armaments including the Cypher 091 Assault Rifle. Notably, the Zombies mode has also been significantly enhanced with the introduction of The Tomb, marking its second map release since the game’s launch.
As players immerse themselves in the main Easter Egg challenges of The Tomb, they can also discover several side secrets to unlock various rewards, including a free Pack-a-Punch crystal. Among these enigmas lies a particularly intriguing Easter Egg, where players can summon a squad of friendly zombies to assist them during gameplay. Below is a detailed guide on how to successfully complete the Brain Rot Easter Egg in Black Ops 6 Zombies.
Steps to Activate the Friendly Brain Rot Zombie Easter Egg

To initiate this Easter Egg, players must first equip the Brain Rot Ammo Mod on a preferred weapon. The most reliable method to acquire this mod is by purchasing it from The Armory for 500 Salvage.
Players can gather Salvage by defeating zombies or by breaking Aether Crystals scattered throughout The Tomb. For those looking to conserve their Salvage, completing the Simon Says Easter Egg will yield a complimentary Brain Rot Ammo Mod.


Once equipped with the Brain Rot mod, players should seek out four specific skulls located within the Ossuary. Each skull is identifiable by an ‘X’ mark, although they can be difficult to spot due to the presence of numerous other skulls nearby.
To successfully complete the Easter Egg, players need to shoot the skulls in the correct sequence and within a limited time frame. Here are the locations of the required skulls:
- Near the Neolithic Catacombs – Found among a mass of skulls to the left of the passageway from the Neolithic Catacombs.
- Under the Arrow Trap – Located directly south of the first skull, beneath the arrow trap.
- Near the Brazier – Positioned in front of the brazier on the north side of the Ossuary.
- By the Speed Cola Perk Machine – Situated near the statue, within a pile of skulls in front of the Speed Cola Perk Machine.


Upon successfully shooting all four skulls, players will see four friendly Brain Rot zombies emerge near the location of the fourth skull. These allies will act similarly to standard zombies affected by Brain Rot, targeting enemies and providing defensive support to the player. After a short duration, these summoned zombies will be defeated, bestowing the player with several hundred Essence as a reward.
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