The Beast from Beyond — Infinite Warfare Zombies Easter Egg Guide

Open from Spawn toward the large Ops Center; its floor has a huge central hole, and there is no conventional power switch — drop through onto the lower ledge. Follow the flooded lower walkway to its end, where N31L's detached robot head lies on the floor; interact to carry it as a quest item. Return to Spawn and install it in the head-shaped slot on the wall terminal by the Spawn exit. Power comes on globally, perk machines activate, and the opening Cryptid-only pressure ends — normal zombies take over next round.

Power still off? The head must be installed in the slot, not merely carried. Finish the lower-water route and interact directly with the terminal.

Go to the Cargo Bay upper catwalk and press the wall button; a turret rolls in and blasts the opposite wall, exposing the portal to the Theatre film set. Inside the Theatre, interact with the floor symbol in front of each dormant portal to activate both return routes — the street portal in front of the Theatre links to the hallway near Medical Bay, and the side-alley portal links to Spawn. Activating both now shortens the later button and helmet runs.

Three bridge scraps, each on a fixed spot:

• Cargo Bay — lowest level, left of the stairs / wedged beside the boxes at the stair base (three Cryptids spawn when you take it).
• Medical Bay — on the floor immediately right of the Blue Bolts perk machine (grab it while opening the force-field route).
• Theatre street — on the burning car to the right of the Theatre portal (needs the Cargo turret portal open first).

Carry all three to the broken bridge in the snowy Exterior and repair it, then take the portal into the projector room: Pack-a-Punch is open for about 30 seconds before the team is forced out, after which the portal cools down for roughly a minute.

First-exit floppy rule — on the first forced exit of a round the game spawns either a Phantom or three Cryptids. The first Phantom killed in the match drops a required floppy, so if one appears, lead it to Spawn and kill it beside N31L. The disc stays where it falls, and only one disc can be carried at a time.

The main quest needs the Entangler, which is gated behind the first two Skull Breaker steps (you do not need the remaining four). First find the single closed electrical box — it moves each match, so check all three spots:

• Flooded Room — above the stairs leading toward Medical Bay.
• Ops Center — high on the wall above the Bombstoppers machine.
• Cargo Bay — above the stairs beside the P-LAW wall-buy.

Hit the box directly with an explosive — cook a grenade so it detonates against the box, or use the OSA under-barrel launcher. The door swings open to expose a pixel skull; shoot it and wait for the completion sound before leaving.

Four red-X marks exist in Cargo Bay:

• Upper catwalk — near the P-LAW wall-buy.
• Main floor — near the foot of the P-LAW stairs.
• Main floor — directly below the catwalk that holds the Theatre portal.
• Main floor — near the X-Eon wall-buy.

Solo uses a single X; in co-op every player must stand on a different X at the same time. The marks turn into green circles and a local zombie defence begins — hold position (step out and the skull resets to next round) while the skull rises through the central beam. When it reaches the top it teleports to a random Cargo Bay spot for only a few seconds; leave the circle and sprint/jump through it. Success spawns the Entangler in the centre of Cargo Bay — pick it up. It occupies its own equipment slot and can carry marked objects over long routes.

Co-op: assign the catwalk player first (they only cover the Cargo-side approaches — the special-defence zombies don't come in from the external hallway), and put the strongest close-range weapon on the exposed main-floor X. Avoid explosive splash that hides the green-circle edge.

The four discs can be taken in any order, but only one can be held at once and each has a different HUD symbol — record the symbol beside each disc's source before picking up the next.

• Disc A (Phantom) — from the first Phantom killed in the match (see step 3); kill it near Spawn/N31L so the disc lands there. A natural round-10 Phantom can also provide it if the first exit produced only Cryptids.
• Disc B (snow) — cross the repaired Exterior bridge, face the Pack-a-Punch portal and look in the snow at the base of the pillar on the left; the disc is always there.
• Disc C (vent) — in the fenced red-lit room off the Proteus-wallbuy hallway (between Cargo Bay and the Exterior); the floppy sits in front of a floor vent at the far end. Hold it with the Entangler and fire it into the vent only while the vent is emitting smoke (a mistimed shot respawns it in front of the vent).
• Disc D (Medical) — Entangle a space helmet (closest in the Exterior-to-Cargo hallway; more around Spawn) and carry it to the Medical force-field room. Fire the helmet through the field at the powered monitor above the microscope; the monitor breaks and the field drops. Collect the disc from the table to the left of the broken monitor.

A correct vent shot ejects Disc C from one of seven permanent exit vents, where it then stays for the match:

• Spawn — on the floor left of the Magic Wheel.
• Cafeteria — left of the Freezer, then around the corner.
• Main hallway — immediately right of the Cargo Bay door.
• Main hallway — across the corridor from that Cargo-door vent.
• Proteus hallway — right of the original red-room fence.
• Proteus hallway — at the top of the stairs.
• Ops-side hallway — close to the door into Ops Center.

Do not guess — a wrong four-disc combination spawns enemies and can reroll your symbols. Each disc shows a HUD symbol; match your four against the fixed six-row chart below — the chart itself never changes, only which four symbols you draw. Find the single row that contains all four of your symbols, read that row left to right, and skip the two symbols you did not receive. Retrieve the discs by source and insert them into N31L in that filtered order; a correct order flashes the HUD yellow then red and N31L turns hostile.

Verified six-row floppy chart — each colour is one valid left-to-right order. Artwork credit: /u/RayPoopertonIII.

Worked example: if your four discs are the 1st, 3rd, 4th and 6th symbols of the matching row, insert them in exactly that order — don't enter the row's 2nd or 5th symbols, since you don't have those discs.

Record each disc's symbol against its source (Phantom / snow / vent / Medical) as you collect it, and confirm one row holds all four before inserting anything. Thin the horde and keep one slow zombie alive first — this insert and the handle hack that follows are both fiddly under pressure. If enemies spawn instead of the yellow-then-red flash, the discs may return to their sources with new symbols; re-record all four and use the chart's left-to-right precedence, not your pickup order.

With N31L hostile, return to the Theatre. In the short hallway behind the Brute cardboard cutout, pull the small removable red button off the wall with the Entangler, carry it to the concession/arcade side and fire it directly into a The Beast from Beyond poster (a miss respawns it on its original wall). Then go to the Medical force-field room you opened for Disc D, go prone in front of the desk and interact with the button now mounted underneath it. A panel of 16 handles opens in the neighbouring room with the dead Cryptid.

The handles are coupled: moving one can spin others, so commit to a plan before you start. Number the positions 1–16 (top-left to bottom-right). Before touching anything, note every handle that is horizontal. Interact with each handle on that original list exactly once, ignoring whether a listed handle has flipped to vertical before you reach it. Then inspect the whole panel: if any handle is still horizontal, note the current horizontal set and flip that set. Repeat the “flip whatever is currently horizontal” pass until all 16 handles are vertical — N31L then becomes friendly (hacked).

No solver here — the rule is the answer. Sources describe this panel from opposite orientations (some say flip the vertical handles until all are horizontal), so trust the coupled-handle method above and the cue that N31L turns friendly, not a fixed orientation. The hacked state lasts only about five minutes; if he turns hostile again, return to the still-open panel and repeat the process.

Prepare the route first: repair the Exterior bridge, have Pack-a-Punch active or nearly ready, and open every purchased door on your path — once N31L is picked up, doors close and extra zombies spawn. Save one slow zombie. While he's friendly, pull his head from the Spawn terminal with the Entangler and keep holding it. His gaze opens only the door he's looking toward, so at each closed doorway face the opening and rotate/spin so his delayed head orientation catches the door before you move on. At the projector room, fire N31L into the computer immediately to the right of the projector to install him.

A version-dependent shortcut: fire the Entangler at an N31L television, switch weapons while still firing, then switch back — some builds then allow normal door interactions while carrying him. Treat it as optional and fall back to the gaze-and-spin route if it fails. Consider finishing Double Pack-a-Punch (in the side quests) before this escort — the Mammoths have very high health. Do not interact with the installed head until the whole team has finished perks, upgrades and cards: that interaction is the point of no return and starts the boss.

Interacting with the installed N31L teleports the team into the alternate Cargo Bay. Find the yellow glowing ammo box as soon as its crate opens — it refills whatever weapon you hold and lasts the whole fight, so spend ammo freely.

Phase 1 — four Rhino crates: the laser cannon opens four crates on a timer, each releasing a Rhino Cryptid; the cannon keeps going even if the last Rhino lives, so focus fire and don't get boxed in by overlapping charges — sidestep when a Rhino lowers its head.

Phase 2 — alternating portals: portals on one side activate for about a minute, spawning Scouts, Cryptids and Phantoms; clear them and the barrier drops. The opposite bank then activates for another timed wave — move to the roofed sloped crate, which funnels ground enemies up one incline and blocks the cannon's line of fire while you hold inside.

Phase 3 — all portals & three monitors: every portal bank activates together while the cannon targets players — hold in the roofed crate. After about 45 seconds three arena monitors light up; from the crate hold, hit them in a tight loop — (1) the corner behind and left of the yellow ammo box, (2) the opposite corner behind and right of it, (3) the monitor at the foot of the sloped crate. Too slow and a monitor with its portals relights; just repeat the lit one.

Phase 4 — the 99 countdown: the cannon opens the crate across from the ammo box, revealing a computer showing 99. It is not a 99-second timer — the sequence takes about two and a half minutes while portals keep spawning; rotate around cover and refill freely. At zero the screen breaks into jumbled characters and sparks — only then interact with it.

Phase 5 — two Mammoths: the cannon opens the crate above the ammo box and releases two Mammoths. Aim for the mouth/head and burst one at a time; their damage leaves persistent blue fire pools, so pull both into open floor before committing heavy fire or the flames seal the crate, ammo box or doorway. Sidestep charges early (a charge can red-screen a fully-protected player) and break focus to clear the 3–5 add pulses the portals release every 30–60 seconds.