Residence Massacre Anomalies Overview

Anomalies are the hostile mutated entities at the heart of Residence Massacre on Roblox. Once human Robloxians exposed to a radioactive spill, they hunt uninfected players with hivemind aggression while rarely attacking each other. Flickering lights, breathing audio, and organ damage responses build the horror atmosphere across online co-op nights, Spirit Helper, Mansion Incident, The Bunker, Endless modifiers, and seasonal events.

This overview complements dedicated pages for The Mutant (Night 1 icon) and The Stalker (Night 2 UV nightmare). Use it as a squad briefing before queueing Place ID 14437001043 and cross-link Items for counters like UV Light, Flare Gun, and Radar.

Lore and mutation rules

Anomalies share several world rules:

• Origin — Radioactive contamination mutates victims; undead and April Fools jokes are explicit exceptions.
• Hivemind — They prioritize killing healthy humans but do not fight fellow anomalies.
• Sensory cues — Lights flicker nearby; audio includes moans, footsteps, and screams on detection.
• Pain response — UV exposure hurts nervous systems, enabling flash counters on entities like The Stalker.
• Progression — Mutation speed depends on immune systems; some grow worse over time (The Mutant) or assimilate bodies (The Abomination).

Understanding lore is not fluff—it explains why UV works, why The Worker splits on Night 3, and why memories replay pre-mutation nights.

Mainline nights threat table

Night	Setting	Primary anomalies	Key counters
Night 1	Residence	The Mutant	Closets, flashlight discipline, stamina
Night 2	Factory	Mutant, The Stalker, The Pest	UV flash, cameras, multi-callouts
Night 3	Forest cabins	Mutated Worker (Husk + Spider)	Shotgun stuns, cabin doors, mark callouts

Night 1 — The Mutant

Brute patrol and chase predator teaching closet hiding and camera awareness. Screams on detection, focuses one player until line-of-sight breaks. Seasonal reskins (Blizzard, Anniversary) alter appearance without changing fundamentals. Deep tactics: The Mutant page.

Night 2 — Triple threat

After 2 AM, The Stalker emerges from puddles requiring UV or camera flash. The Mutant still patrols. The Pest adds window pressure similar to Spirit Helper’s version. Squads fail when they treat Night 2 like “Night 1 but bigger”—assign UV mains before queue.

Night 3 — Worker mutation split

The Worker ally from Night 2 mutates into a torso-split horror, then separates into:

• The Husk — Patrols cabins, breaks doors after gunshots or marks, heartbeats when near, stunnable with shotgun up to three times.
• The Spider — Climbs windows and holes, lunges for damage and marks that summon Husk breaches.

Players outside cabins are tracked; inside cabins they are safer until marks or broken doors expose beds. Both despawn at 6 AM. Gas can objectives tie into truck escape narrative—see Characters for Worker arc.

Memory anomalies

Spirit Helper — The Pest

In the child’s bedroom memory, The Pest attacks through vents, doors, and windows in phased reveals. Sanity mechanics replace stamina. Hiding under the bed is lethal here—opposite of some mainline closet rules. Bloodmoon modifiers increase aggression for mastery runs.

Mansion Incident — The Pest (mansion skin)

Lead Factory Worker defends rooms against window phases: eyes, half body, full body, then breach. Flash with flashlight to scare Pest away. Blackout events darken all rooms except green fireplace light at 3 AM onward.

The Bunker — The Abomination

The Miner faces The Abomination spawning from bunker holes. Sound meter above 50% lures it; cameras replace flashlights; heartbeat minigames under beds can trigger. Flares and cameras slow or stun briefly. Ending audio ties into Stalker mutation lore.

Endless, Graves, and event anomalies

Endless reuses night maps with upgrade shops, weather modifiers, and bonus Coin payouts on Fog, Rain, or Eclipse. Graves and Blizzard modifiers add themed threats and pumpkins that drop batteries but do not increase base Coin rewards.

April Fools events introduce joke anomalies—non-canon difficulty spikes. Anniversary and Christmas teasers show reskins like Spider or Mutant winter variants. Track Updates for each season’s roster additions.

Damage and stun reference

Anomaly	Primary damage	Stun tools
The Mutant	Chase kill	Flare Gun, barricades (Night 1)
The Stalker	Static gaze, touch kill in rampage	UV / camera flash
The Pest	Window breach	Flashlight flash
Husk	Chase kill	Shotgun (3 stuns), Flare
Spider	Lunge + mark	Shotgun, Flare scares away
The Abomination	Chase + bed minigame	Camera, Flare
Undead	Varies	Flare does not work

Flare Gun requires Hello World badge from The Bunker—budget Coins accordingly on Items.

Co-op strategy across anomalies

1. Call anomaly name + location — Reduces panic when multiple threats overlap.
2. Tool assignments — UV for Stalker nights, shotgun for Night 3, radar for info.
3. Do not share false codes — No promo codes active; practice beats cheats.
4. Review gamepasses — Better Flashlight and Iron Lungs help every night.
5. Link Players Hub — New teammates read Mutant and Stalker pages before Endless grinding.

PvP and removed content

Legacy PvP modes let players wear Mutant skins—removed with refunds for certain passes. Current anomaly focus is PvE. Ignore outdated tier lists ranking PvP mutant cosmetics.

Future threats and teasers

Tea Studio posts silhouettes on Discord before Night reworks—recent Night 1 Rework showed camera systems and exterior house changes. When new anomalies debut, this page updates with spawn tables and counters while child pages split detail once mechanics stabilize.

Anomalies are the reason Residence Massacre succeeds as co-op horror: predictable enough to learn, varied enough to demand new items and callouts each night. Master this roster and your squad converts failed runs into Coin income instead of queue dodges.