Animal Hospital AnomalyRoblox Anomaly Wiki

Animal Hospital Anomaly Tier List

Every anomaly in Animal Hospital ranked by how dangerous it is — from run-ending S-tier threats down to the harmless C-tier. Tap any anomaly for the full guide.

S
Run-ending · Extreme danger 1 anomalies

Can end your run the moment you slip up. Learn these cold.

A
High threat · High danger 15 anomalies

Serious sanity loss or hostile inside the hospital. Prioritise them.

B
Watch out · Medium danger 13 anomalies

Punish carelessness but manageable once you know the tell.

C
Low risk · Low danger 1 anomalies

Little to no threat — sometimes even helpful.

How to read this: tiers are based on how badly a mistake costs you — S-tier anomalies like the Skinwalker can end a run instantly, while C-tier Barney is actually helpful. Difficulty to spot is separate; check each anomaly's page for its exact tell.

See the full anomaly list → Survival tips →