Spotting doppelgangers in That's Not My Neighbor gets harder as the game progresses. Early impostors have obvious tells, but later ones require forensic-level attention to detail. Here is how to catch them all.
Always check the apartment number first. It is the fastest verification point and catches roughly a third of all doppelgangers. If the number does not match the resident list, deny entry immediately without wasting time on further checks.
Compare physical features systematically in That's Not My Neighbor. Start with hair color, then eye color, then any distinguishing marks mentioned in the resident file. Doppelgangers typically get one detail wrong, and checking in a consistent order ensures you do not miss it.
Watch for behavioral tells. Real residents act naturally: they wait patiently, make small talk, and respond to questions without hesitation. Doppelgangers sometimes pause too long before answering, repeat phrases verbatim, or display subtle animation glitches that break the illusion.
The name check is trickier than it seems. Some doppelgangers use names that are one letter off from the real resident. Read each character of the name rather than glancing at the overall shape of the word. Your brain will autocorrect near-matches if you read too quickly.
When in doubt, use the phone to call the resident's apartment. If someone answers from inside, the visitor at your desk is not who they claim to be. This verification method takes time but eliminates uncertainty completely. Save it for cases where visual checks are inconclusive.
Keep your workspace organized. The resident list, the current ID, and your notes should all be visible simultaneously. Flipping between screens wastes seconds that add up over a full shift, and That's Not My Neighbor penalizes slow processing as much as wrong decisions.