Residence Massacre anomalies are hostile, mutated former citizens of Robloxia created in the wake of a catastrophic radioactive spill at an industrial factory. In the Roblox horror survival title developed by MisterGamer_67, these entities stalk players across residential homes, abandoned factory floors, campgrounds, and underground bunkers. Operating under a subconscious hivemind, they do not fight each other, directing their relentless aggression exclusively at uninfected survivors.
Surviving encounters with these creatures requires understanding their individual spawn triggers, sensory mechanics, audio cues, and equipment counters across every mainline night, memory scenario, and gameplay modifier.
Core Lore and Shared Behavior of Anomalies
According to in-game government emergency radio broadcasts, anomalies originated when employees at an industrial plant suffered acute exposure to radioactive materials. While non-event undead originate as reanimated corpses, the primary living anomalies undergo physiological degradation that mutates their bodies while preserving functioning organs. Players can distinctly hear their heavy breathing, grunts, and mechanical or biological footfalls.
Across all encounters, anomalies share distinct physical and environmental traits:
- Electromagnetic Disruption: Proximity to living anomalies frequently causes nearby lights to flicker. While not scientifically accurate to real-world radiation, it serves as a reliable proximity warning.
- Nervous System Vulnerability: Anomalies feel physical pain and sensory overload when subjected to intense light sources, particularly concentrated ultraviolet (UV) light, floodlight beams, and camera flashes.
- Progressive Mutation: Entities evolve over time or assimilate matter. The Mutant sustains progressive facial deterioration and tissue damage across nights, the Abomination assimilates organic mass, and the Worker's mutation ultimately detaches his head into an autonomous entity.
Mainline Campaign Anomalies
The primary campaign spans three distinct nights, introducing increasingly complex threats that force players to expand their surveillance and defensive routines.
The Mutant (Code Name: L-RY / Larry)
The Mutant is the initial and recurring antagonist introduced in Night 1 and Night 2. Characterized by a severely gouged torso exposing his spine, blade-shaped bone arms, four lizard-like eyes, and a split dual-jaw, he aggressively breaches perimeter barriers.
- Night 1 Behavior: Beginning at 12:00 AM, the Mutant hunts your home. If all players remain indoors, he spawns randomly outside windows; if any player steps outside into the yard, he spawns in the tall grass. His glowing eyes give away his position in the dark. If he breaches a window, he enters the home to hunt. Escaping his line of sight for 15 seconds breaks his chase, and he naturally despawns after 30 seconds of passive wandering.
- Night 2 Behavior: Relocated to the factory, the Mutant can no longer spawn outdoors. Instead, he attempts to force his way through five designated perimeter floodlights. Barricades slow his entry, and his footsteps produce heavy acoustic cues.
- Primary Counters: On Night 1, flicking the room light switch or triggering a camera flash from the CCTV computer repels him from window frames. On Night 2, players must press the white neon floodlight buttons to flash and retreat him. In open chases, looping around interior rooms clockwise while shutting doors delays him, while a direct blast from a handheld UV light will temporarily stun him.
The Pest
The Pest debuts on Night 2 and re-emerges across multiple memory chapters. Unlike the towering Mutant, the Pest is a hairless, completely unclothed entity with white-dot eyes, sharp claws, an empty abdominal cavity with exposed ribs, and the rare ability to vocalize coherent speech.
- Factory Sabotage: The Pest crawls through four ceiling holes and wall vents starting at 1:00 AM. When perched above, blood drips onto the floor below. He actively sabotages operations by chewing through floodlight electrical wiring, disabling defensive flashes. If the player sends the NPC repair worker to fix a cable while the Pest is still present, the Pest instantly kills the worker.
- Vent Attacks: In wall vents, his claws become visible at the opening. Walking carelessly past an occupied vent triggers an ambush.
- Primary Counters: Play the designated radio units situated near the floodlights. The sound drives the Pest off immediately. If the outdoor radio tower is struck by lightning (which occurs at 2:00 AM and 4:00 AM), climb the tower with a Wrench to repair the sparkling wire before radios will function again. For vents, players can safely bait his lunge by stepping forward and rapidly retreating.
The Stalker
The Stalker is an intelligent, high-threat anomaly appearing in the factory on Night 2 after 2:00 AM. Distinctly green-skinned, unusually tall, and lacking facial eyes, he features spinal tentacles and sharp spikes lining his arms.
- Spawning and Rampage: The Stalker emerges slowly from black liquid puddles located at four specific floor cracks (entrance, office, storage room, and back right hallway). Spawning is signaled by screen flicker and an audible heartbeat. If left undisturbed, he enters a rampage mode, teleporting around the factory, leaving damaging black slime trails (dealing 4.44 damage per second), and emitting a loud shriek.
- Direct Gaze Lethality: Looking directly at a rampaged Stalker fills your screen with static and rapidly drains health at 13.3 damage per second. Making direct physical contact during his rampage results in an instant kill.
- Primary Counters: Catch him while he is emerging. Shining a UV Light or discharging a trail camera's single-use flash at his puddle forces him to retreat into the crack. If he is already rampaging, look away immediately and stun him with a UV light to safely bypass him.
The Mutated Worker and The Spider
On Night 3 at Lakeview Camp, the factory repair worker succumbs to radiation exposure, splitting into two symbiotic entities:
- The Worker's Body (David): A massive, headless torso torn vertically open with rows of teeth and writhing tentacles. He patrols the campgrounds in a continuous loop and cannot naturally despawn. If a player remains outside a cabin, he pathfinds directly toward them. If he spots you, he screams and initiates a chase.
- The Spider Head (Dave): The worker's severed head, which navigates on spider-like appendages. The head peeks through cabin windows and roof holes. If Dave enters the cabin, players must dodge his lunges three times to make him leave in frustration. If he catches a player or is shot twice, he alerts the body to rush and breach that specific cabin.
- Primary Counters: Use the camp Shotgun to defend yourself. Dave can be blasted away from window sills before entering, after which you should pull the window blinds down. The Body can be stunned with shotgun blasts, but he possesses adaptive immunity: after two shots from the same player, he adapts and ignores further fire from that individual. In team runs, players must rotate shooters to reset stun opportunities.
Memory Chapter Anomalies
Standalone Memory chapters explore historical encounters and alternate perspectives within the lore.
The Pest (Spirit Helper & Mansion Incident)
- Spirit Helper: Taking the role of a child in a bedroom, players face the Pest as he peers through the doorway across three distinct progression stages. Players must track the timing of the room's alarm clock (20-second warning intervals), check the closet for breathing sounds, and hide under the bed within four seconds once the Pest reaches stage three.
- Mansion Incident: Set during a Halloween trick-or-treat scenario, variants of the Pest attempt to breach the mansion windows while trick-or-treaters knock at the door. Players must patrol the estate, shine flashlight beams through windows to scare anomalies away before glass breaks, maintain fireplace logs for warmth, and deliver candy at the entrance only when no anomaly breathing is detected.
The Abomination
Found exclusively in the subterranean memory chapter The Bunker, the Abomination is a heavily mutated creature with sharp teeth protruding from its chest, one destroyed eye socket, and asymmetrical, swollen limbs.
- Acoustic Tracking: The Abomination is completely blind, relying entirely on noise thresholds to locate players as they navigate corridors to reboot ventilation systems.
- Primary Counters: Keep noise meters low by crouching and moving cautiously. If spotted or pursued, avoid hiding under the same bed more than twice, as the Abomination will sweep the spot. Flash the entity with camera flashes or deploy red smoke flares to temporarily blind and slow its advance.
Graves Modifier: Undead Variants
When activating the Graves modifier on mainline nights or reaching designated days in Endless Mode, supernatural undead entities spawn from burial sites across the maps. Unlike radiation anomalies, undead operate on rigid timer mechanics.
| Undead Variant | Active Night | Spawn Timestamps | Health / Combat Rules | Unique Countermeasures |
|---|---|---|---|---|
| Zombies | Night 1 (Residential) | 12:00 AM (1), 2:00 AM (2), 4:00 AM (2) | Pursues nearest player; breaks doors in 9 hits; deals heavy contact damage. | Stun with camera flash or Subspace Tripmine. Break pursuit by hiding inside a closet. |
| Skeletons | Night 2 (Factory) | 12:00 AM (1), 2:00 AM (2), 4:00 AM (2) | Highly aggressive pathfinding; slightly faster than walk speed; 9 hits to break doors. | Highly vulnerable to UV Light (freezes in place). Can be kited onto the exterior radio tower ladder. |
| Undead Pumpkins | Night 3 (Campground) | Random intervals after midnight | Patrols territory around floor pumpkin markers until visual contact is made. | Killable with the Shotgun. Drops collectible Snowballs upon defeat. |
Quick Reference: Threat Profiles & Primary Counters
| Anomaly | Primary Locations | Core Hazard | Most Effective Counter |
|---|---|---|---|
| The Mutant | Night 1 (Windows/Yard), Night 2 (Floodlights) | Physical breach, high-speed interior chase, instant kill upon reach. | Turn on room lights (Night 1), trigger floodlights (Night 2), loop clockwise with doors, flash UV light. |
| The Pest | Night 2 (Factory), Spirit Helper, Mansion Incident | Cuts floodlight cables, ambushes from vents, kills repair workers. | Activate local Radios, bait vent strikes, repair the exterior radio tower after lightning strikes. |
| The Stalker | Night 2 (Floor Cracks / Factory Hallways) | Static gaze damage (13.3 DPS), lethal contact, damaging black goo trails. | Shine UV Light or trigger camera flash during emergence; break eye contact when rampaging. |
| The Mutated Worker | Night 3 (Campground Exterior) | Relentless outdoor patrol, cabin destruction, adaptive gunfire resistance. | Shotgun blasts (maximum 2 effective stuns per player), hide under beds before cabin breaches. |
| The Spider Head | Night 3 (Cabin Windows & Ceilings) | Window infiltration, cabin jumpscares, summons the Mutated Worker body. | Shoot from windows with shotgun, lower window blinds, dodge interior lunges 3 times. |
| The Abomination | The Bunker (Memory) | Sound-based tracking, room sweeps, high lethal aggression in dark corridors. | Maintain low noise levels, avoid reusing the same bed hideout, use flares and camera flashes. |
Frequently Asked Questions
Can you kill anomalies in Residence Massacre?
Most mainline anomalies cannot be permanently killed. The Mutant, Pest, Stalker, and Mutated Worker can only be repelled, stunned, or delayed using lights, radios, and shotguns. However, Undead Pumpkins appearing on Night 3 under the Graves modifier can be permanently eliminated using the Shotgun.
What causes anomalies to appear in the lore?
Anomalies are mutated factory workers and area residents transformed by an accidental radioactive leak at an industrial chemical and energy facility near the neighborhood. The only exceptions are the Undead (reanimated corpses from cemeteries) and event-exclusive entities.
What should you do if the Stalker fully emerges on Night 2?
If you fail to flash the Stalker while he climbs from his puddle, never look directly at him, as viewing his model drains health rapidly. Listen for his teleportation audio cue, steer clear of the black puddles he leaves on the floor, and use a UV light to stun him if he teleports directly in your path.
Does hiding in lockers protect you from the Mutant on Night 2?
Lockers provide temporary protection, but they carry strict rules. When the Mutant inspects your locker, you must hold your breath only when his face is right at the door slits and you hear his breathing. Furthermore, you can only hide in a locker safely once per game; attempting to hide in a locker a second time causes the Mutant to force the door open and kill you.
