In the menu, select how many bots/ NPC's you want there to be. (The more ghosts there are the harder it is for the alien / seeker) WASD is used for the alien, and the arrow keys are for the ghost. When the alien presses SPACE he shoots out lighting which kills the ghost's for a short period of time. The goal of the ghost is to blend in and last as long as possible. E is to use the Alien ability. L is the ghost ability.