Astra Malorum — Black Ops 7 Zombies Easter Egg Guide

Open toward the Observatory Dome and interact with the Harmonic Oculus to turn the power on. You are then prompted to find two missing components: a scroll piece beside a dead zombie in Machina Astralis, and a second part beside a dead zombie in the Luminarium.

Install both at the Dome and hold a short defence while the Pack-a-Punch machine arrives.

Note on Cursed mode: Standard shows the steps on screen; Cursed gives you no guidance at all, so know the route before you attempt it there.

Loadout: the DS20 Mirage, Novaline or a kitted AR all work, with an Ion sniper as a secondary specifically to strip boss armour. Take Shatterblast for the boss and Deadshot’s armour-damage minor augment. There are no Max Ammo drops in the boss fight — only an ammo crate and one scripted power-up — so carry 15,000 to 20,000 points in for rebuys.

Three build parts plus three shards. The UFO part requires Oscar — the robot mini-boss who spawns after power around round 7 or 8, emerging from the steam vents with a siren at the round start. He patrols like a sentry until aggroed.

Do not kill Oscar yet — you need him alive for the three trap kills, and you want the UFO shot off him first.

• Damaged UFO disc — shoot the small UFO flying around Oscar while he patrols
• Aberrant wires — find the one blinking lamppost among the dozen-plus around the map (it may look knocked over, or sit next to Wisp Tea) and shoot it a couple of times
• Old Tessie car battery — with a Pack-a-Punched weapon, shoot the front bonnet of Tessie in spawn. It pops open with the battery, and a zombie ambush spawns as you take it
• Three Absolute Zero shards — put Cryofreeze on a weapon at an arsenal machine, shoot the three purple aether crystals around the map, and collect each shard (tracked in the HUD)

One Oscar per trap, in any order — a fresh one spawns every couple of rounds. Whichever trap kill is your third pops out the LGM-1.

Sunbeam trap (PaP room): interact with the organ to play its tones, then shoot the six or seven steaming vents in sequence as the steam jumps between them — corners, pillars, and up on the balcony above Pack-a-Punch. It is on a timer; fail and you replay the organ to restart. Success gives a quote and the telescope moves. Interact with the viewfinder and drag the cursor onto the sun — Mars is the decoy. With Oscar in the room, exiting the viewfinder fires a laser through the telescope; walk him through it. Shooting his orbiting UFOs staggers him in the beam.

Laser trap (Luminarium): install the UFO disc, wires and battery into the trap to the right of the switch, lure Oscar in and activate it — the first use is free. A charging bar runs while the trap damages him; stay in the room and destroy the mini-UFOs that spawn around him until it completes.

Rocket trap (Museum Infinitum): with the three Absolute Zero shards, destroy Oscar’s UFOs, then interact with the back of the rocket to load the shards. A five-or-six-second countdown runs — keep Oscar standing in the exhaust at zero and he freezes.

The other guide: MrDalekJD counts only five steaming boxes in the sunbeam sequence.

Wait for a fresh Oscar that is patrolling — yellow searchlight, not aggroed — and follow behind him with subtitles on while he plays back elimination recordings.

Listen for this exactly: at the playback of Elimination 20 he quotes Dr Fen and then names three planets. Note them in order — that is your code.

Convert them to each planet’s order from the sun, Mercury being 1 through Neptune at 8. Neptune, Mars, Jupiter would give 845. Enter it on the machine in the Observatory Dome.

Confirmation cue: the screen shakes with a character quote and a platform facing Pack-a-Punch lowers. Mantle up and take the cryo key beside the body.

Smash the glass cabinet in the Museum and take the bone saw. Then go to the cryopod room on the south side of Machina Astralis, open the chamber with the key, and hold interact to use the saw and remove the brain.

Oscar teleports in and attacks during the extraction — do not start it with him already breathing down your neck.

Place the brain in the jar in the Luminarium, then interact again to start a 60-second lockdown defending it from every side, Oscar included, with purple-eyed zombies streaming in. In co-op one player can pull the horde away entirely.

Confirmation cue: white flash — pick the jar up and carry it to the perfusion machine in Machina Astralis, the solar-system room, and hold interact to connect it.

Mars coordinates. At the Observatory viewfinder, centre the cursor on Mars — its position randomises. The bottom-left box shows a four-digit DEC value. If it reads as three digits, such as 57° 5', the number is 5705 — the zero is added. Enter it at the opened box one floor up in Machina Astralis for “coordinates accepted”.

Reading list. The screen left of the brain machine flashes book titles, three to six of them, randomised per game. Note the full list.

The busts. In the Archive of Orbit, three statue busts are each tied to a set of bookshelves, colour-coded by wall. Interacting with a shelf names its book. For each bust, count how many of your list’s books sit on its shelves, then rotate that bust exactly that many times.

Do the whole sequence fast. MrDalekJD reports needing it within about 15 seconds of a round starting, one attempt per round; MrRoflWaffles allows three mis-inputs before the busts lock until next round. Either way, work out your counts before you touch anything.

Confirmation cue: the hatch above the ladder opens. Climb up, take the Neptune planet and install it on the empty prong on the top floor of Machina Astralis.

Find three notes, each pairing a planet with a compass direction. They sit on the table in Machina Astralis (Saturn), the table in the Archive of Orbit (Mars), and the table against the wall in the Luminarium laser-trap room (Neptune). The directions randomise per game.

In the solar-system room, the chandelier doubles as a compass with the directions marked. Shoot each hanging planet — Saturn is the big ringed one, Mars the medium red, Neptune the blue — until it points at its noted direction.

If a planet will not move, you are shooting the wrong one. Nudge with extra shots until it sits clean on the bearing.

Interact with the brain machine — the teleporter ring floats up and a lockdown begins. Expect roughly 90 seconds against an immune Oscar with infinite zombies, and UFO volleys fired at the central structure that you need to shoot down, each announced by a sound cue.

Confirmation cue: “the red planet is yours” — everyone teleports to Mars.

Pick up the brain jar that falls as a canister on the lower level, carry it upstairs, place it on the machine and hold interact again to craft it in — a quote about a missing component plays first.

React immediately to the odd sound. After Thurston says “that’s odd”, run straight to the back window of Mars with a long-range weapon.

Shoot the metal pylons outside in order: back-right, back-left, front-right, front-left. Then turn 180° and shoot the pylon above the machine. A tiny flying bird zips between the pylons as each lights up, drawing it into the map.

Catching it: wait for low gravity, keep re-shooting the rear pylon so it does not fly off, and when it swoops low jump and hold interact mid-air — from Thurston’s top platform if you need the height. That gives you the Ascendant Eye.

Place the eye in the pyramid slot on the right side of Mars.

Back on Earth, interact with the organ in the Observatory. The display flashes five symbols — four visible plus one interference tone. Rewatch it as many times as you need, and record both the sequence and which position the static occupied.

On Mars, the LGM-1 holder shoots the antenna tops of all five pillars — one in a corner, two upstairs by the teleporter, two bottom-left. UFOs orbit the antenna, it spins, a tone plays, and all pillar bases then glow dull blue.

The trick: the pillar-base glyphs are stylised variants of the screen glyphs, and the static position is the pillar whose symbol never flashed — you identify it by elimination.

Timed from the first activation. A wrong pillar flashes red; three mis-taps and you wait for the next round.

Confirmation cue: a rising tone per pillar, then a white flash — the boss is available.

Mars Symbols Order Tracker

Observatory Oculus → Mars pillars

The five symbols appear one way on the Observatory Oculus (the gold discs you tap here) and a different way on the Mars pillars (the line versions shown in the result). Read the order on the Oculus, tap the gold discs in that order, and the Mars-pillar sequence to activate builds live. One Oculus slot sits static/blank — the symbol you never tap is that missing one, done last by elimination.

Tap the gold Oculus symbols in the order shown. The line version below each is how it looks on the Mars pillars.

Order: noneClear

Tap the gold Oculus symbols in the order shown to build the Mars-pillar sequence.

Hold interact on the brain jar to vote in.

Phase 1 — energy form. Kill zombies anywhere in the arena to charge the pylon soul-boxes at the edges: right pylon first, then left, then both at once. When a pylon is lit blue, go upstairs and hold interact on the brain to fire a laser taking roughly a quarter of the boss’s health. His attack is tracking lasers on every player — keep moving, and in co-op everyone must run the same direction so you do not cross each other’s trails. The third sequence adds acid gas flooding the ground floor — stand upstairs or in the centre circle until it clears — plus lava patches.

Phase 2 — physical form. A bullet sponge. Strip the armour with the Ion sniper or Shatterblast to expose a glowing blue crit spot; hit markers turn yellow when you are on it. He throws rocks at a single player — break line of sight and the boulder shatters mid-air — and closes in to box you, so keep distance and keep circling.

Phase 3 — Ascendant. Same loop plus a ground slam: he stops moving and leans back as the tell, and you jump as it lands or it strips every armour plate. There is an armour wall at the top of the stairs selling a full set for 10,000.

Phase 4 — the Needle. The brain jar drops a 60-second power-up giving max ammo, a full field upgrade and effectively infinite equipment — save it and spam equipment while it runs. The rocks are now electrified and their impact points leave dark purple electricity pools that are near-guaranteed downs. Never path through them. In co-op, group in the middle and chain Group Shroud, refreshing with Power Keg or Raindrops, and unload on the crit spot.