"Enemies are blind but they can hear footsteps and shouts, which are triggered by a key press. Every sound that the player makes causes a visible ripple, alerting any character that it touches. Then they scream and run toward the source of the nose. It’s alarming and creates a fine tension as fleeing from a pursuer noisily will provide evidence as to your movements."
read the full article here! - Rockpapershotgun.com