Zetsubou No Shima, the iconic Call of Duty Zombies map set on a swampy Pacific island, offers players a complex main quest full of narrative depth and unique gameplay mechanics. Completing the main Easter egg requires meticulous preparation, resource management, and strategic team coordination across several distinct phases. Understanding each step thoroughly helps players navigate the hostile environment and overcome the island's formidable challenges.
Setting Up the Power and Essential Utilities
Before attempting any Easter egg steps, players must restore permanent power to the facility by filling both temporary power generators and clearing the underwater turbine. Once full power is operational, building the Skull of Nan Sapwe and the KT-4 wonder weapon becomes top priority. These key tools are mandatory for interacting with hidden quest objects and revealing critical clues throughout the island.
Players should also complete their individual challenge pillars in the spawn area early in the match to earn free perks and weapon rewards. Managing point spending efficiently during early rounds ensures your team can unlock necessary areas without being overwhelmed by aggressive zombie waves.
Upgrading the KT-4 and Unlocking the Bunker
Upgrading the KT-4 into the Masamune is an essential requirement for progressing through the final stages of the main quest. Obtaining the necessary upgrade components involves harvesting a specially watered plant, defeating a Thrasher with an electrified shield, and retrieving a vial from a spider boss. Utilizing the Skull of Nan Sapwe's mesmeric force reveals hidden poster locations and poster codes inside the main bunker.
These revealed symbols guide players to lower the elevator cage into the deep underground research chambers. Ensuring every team member has upgraded weaponry and defensive perks before descending into the lower facility significantly raises your chances of survival.
Lowering the Elevator and Preparing for the Boss
To operate the main elevator mechanism, players must electricity-charge three separate mechanical cog pieces found across the map. Acquiring these cogs involves precise tasks, including using a mesmerized poster clue, swimming through underwater pipes, and shooting down a zipline dropped item. Placing all three cogs into the bunker's elevator control unit restores full operation to the shaft.
Before stepping into the elevator, all players should max out their ammo, equip Gobblegums, and ensure shield durability is high. The upcoming boss encounter requires constant mobility and focused firepower, so adequate preparation in the bunker is critical.
Defeating the Thrasher Boss and Escaping the Facility
The final showdown pits the team against a giant mutated Thrasher root system deep within the bottom chamber. Players must dodge sweeping vine attacks while constantly shooting the boss's glowing orange weak spots with the Masamune. Spawning thrashers and normal zombies will pressure the team, making clearing adds and reviving downed teammates vital.
Once all weak spots are destroyed, the boss falls, triggering the final cutscene and completing the main quest rewards. Successfully beating the quest awards players all perks for the remainder of the session and solidifies mastery over one of Zombies' most atmospheric maps.
