One thing we do know about the alien from Alien is it likes to creep around in ducts. This should clue you, the human being hunted by the alien, that the air ducts are not a good place to go wandering around. But just in case you need a reminder, here's a visual primer on what happens when you and alien try to share the same duct. Alien: Isolation is a scary game. It's out Oct. 7.