Zetsubou No Shima — Black Ops 3 Zombies Easter Egg Guide

Kevin Sherwood ft. Malukah. Interact with the 3 plush toys: Lab A (on a generator left of the blue pool), Lab B upper floor (small top room), and the bunker Test Subjects area (table beneath the flooded section).

1. Interact with 3 plush toys, in any order (a space-age chime confirms each)
2. Lab A — on a small generator to the left of the blue irradiated pool
3. Lab B upper floor — on a table in the small top-floor room before the broken-ladder balcony
4. Bunker Test Subjects area — on a table beneath the flooded section, far-left (needs power in both labs)
5. 'Dead Flowers' by Kevin Sherwood ft. Malukah plays

Fill the row of purple-water bulbs underground in the sequence 1-3-5-6-7-5, then activate the play bulb. (Sequence widely reported but treat as approximate.)

1. Fill your bucket with Purple 115 water (underground bunker cocoon room)
2. Go to the wall of 7 glowing bulbs beside the purple pool; number them 1-7
3. Pour purple water into the note bulbs in order: 1, 3, 5, 6, 7, 5 (a mistake resets the row)
4. Interact with the activation bulb to play the Samantha's Lullaby mix
5. (The exact 1-3-5-6-7-5 order is widely reported but single-sourced)

The map's plant-based acid Wonder Weapon — built from three parts and upgraded to the Masamune, the only reliable way to kill the boss's arms.

1. KT-4 bench is in the underground formula room near Mule Kick (past Pack-a-Punch)
2. KT-4 part 1: on a spider round in Lab A, lure a giant spider into the purple goo via the cage, then take the container
3. KT-4 part 2: from ~round 8, kill a green-glowing zombie (around Lab B) for the test tube
4. KT-4 part 3: swim the flooded passage by Mule Kick to the blue-crystal dead end for the red plant; build at the bench
5. Masamune: clear the Lab A cobwebs with a charged KT-4, beat the Giant Spider and loot it; take a vial from Lab B's electric chamber; grow a Masamune plant on Rainbow water
6. Craft the Masamune at the upgrade machine beside the KT-4 bench

Cleanse the four altar skulls and beat the Keepers to earn the skull — a scanner and melee tool used to reveal hidden walls.

1. Take a skull from the hilltop altar's four pillars — an Apothicon symbol appears on it; memorise it
2. Carry it to the cleansing pedestal bearing the matching symbol (near spawn, the docks, the plane wreck, and the lower Communications area)
3. Place it and defend it through the event (skull 1 zombies, 2 adds spiders, 3 Thrashers, 4 all types)
4. Cleanse all four to crumble the central altar and open an underground chamber
5. Kill the Keeper phantoms to charge the weapon, then collect the Skull of Nan Sapwe
6. Use: Vaporize (levitate & explode) and Mesmerize (hold enemies); its blast also reveals hidden walls for later steps

Grow perk fruit in a pod and eat it for a random free perk (Enhanced Fruit improves the odds).

1. Pick up a seed (blue power-up drop) and plant it in a mud planter
2. Water it once per round for three rounds — for perk fruit, use Blue, Green and Purple water across the three rounds (no fertiliser)
3. When mature, eat the fruit for a random free perk
4. Only eat with an empty perk slot — a full loadout makes you vomit and wastes it
5. Enhanced: also fertilise with the KT-4/Masamune after each watering to raise the perk odds

Plant Seeds and water with Blue/Green/Purple/Rainbow (fertilise with the KT-4) to grow loot pods, weapons, Cymbal Monkeys, an Empty Perk Bottle and more.

1. Seeds drop from zombies (blue power-ups); plant them in mud planters (some hidden ones need the Skull of Nan Sapwe to reveal)
2. Fill a bucket at a water tap and pour on the seed once per round for three rounds
3. Taps: Blue (Lab A spider-pond), Green (behind Lab B by the sewer exit), Purple (bunker cocoon room); Rainbow needs a tight 115-rock interaction with the Gold Bucket
4. Outcomes: Blue×3 = loot pod, Green×3 = a plant that pins a zombie, Purple×3 = a carnivorous plant, all three mains = best perk fruit, Rainbow×3 = the Masamune plant
5. Fertilising with the KT-4/Masamune after each watering boosts the reward and enables the enhanced options

Burn the web by Speed Cola with the KT-4, beat the giant spider and finish the cave interaction for a free Widow's Wine (the same fight yields the Masamune fang).

Grow the right plant to store a player's weapons, perks and state — after death you respawn from the plant with your loadout intact.

Complete the long plant/water interaction chain to upgrade the water bucket so it holds every water type for repeated use.

Complete the cocoon/transformation steps to temporarily play as a Spider, or grow the right mutation and feed a zombie to spawn a temporary allied Thrasher — both optional.

Use the Skull of Nan Sapwe on the hidden portrait trigger to reveal the character-double jump-scare.