In gameplay, the player can be heard saying sometimes after killing someone, "I am the one who knocks!" This is a reference to Walter White's quote in Breaking Bad (2008). See more
Before you I place a choice. Walk through the blue door and continue to face yet more failures at saving those closest to you. Your race will live on borrowed time and will, through your violent arrogance, wind up extinct. Walk through the red door, however, and I will release the humans whom I have collected. I will give them amnesty and even a ship from my fleet to do with as they see fit. However, in choosing this door, you will willingly submit yourself to execution. This is the moment ...