The images of Owls come to them in dreams before they actually see the aliens, its using the theory of "Collective consciousness", where the whole crew share symbolic dreams, where the aliens are perceived as Owls.
For the fiftieth time, I don't have any weapons! This is a clothing store. We sell clothing. There's a giant sign out front that says "Clothing"! Why are even in here if you don't want any clothing?!
Okay, so I can only move with the keyboard, I can only select trees with the keyboard, but to choose the tower type I need the mouse? How does that make sense as a control scheme?
The images of Owls come to them in dreams before they actually see the aliens, its using the theory of "Collective consciousness", where the whole crew share symbolic dreams, where the aliens are perceived as Owls.