You are trapped in a subway station. You must detect anomalies and arrive at the destination station to escape.
(More than 30 anomalies are prepared.)

If even the slightest change is detected, go to the subway car with the red line.
If there is no change, go to the subway car with the blue line.

if your answer is correct, Go to the next stop
If wrong, then you have to start over from the beginning

Play Time
20~60 minutes

Controls
Move - WASD/Mouse
Option - Esc

Option
Sound Setting
Exit