The ship consists of several levels, or decks, connected vertically with an elevator and a ladder shaft. Operating the elevator notifies the security robot, so most of the time the player uses the shaft. Much of the game consists of an attempt to collect DNA samples that will allow access to other areas of the ship, where samples of higher-ranking crew members can be found. This process will eventually allow access to the bridge. In addition, the crew left several video recordings in the dataports that contain access codes needed to destroy the Defender through a variety of methods - crushing it or throwing it into space for instance. Once this is complete the player has five minutes before another Defender appears, during which they have to get to the bridge and set the ship to self-destruct. Like the mission to destroy the Defender, there are several ways to destroy the ship.