When motion was detected in front of the motion tracker, a circle would appear on its screen, indicating where the motion was detected. If motion was detected on the left, right or back of the tracker, a crescent-like indicator would illuminate, indicating on which side of the tracker the motion was detected. Unlike the tracking device used by the crew of the USCSS Nostromo (including Amanda's mother, Ellen Ripley), the motion tracker was relatively small (possibly even smaller than the M314 Motion Tracker used by the United States Colonial Marine Corps in 2179) and able to easily be carried in one hand.
Behind the scenes
As a reference to the tracking device prop in Alien using an ice cube tray as a greeble, the motion tracker also incorporates an ice cube tray on its right side. Another nod to the tracker seen in the first film is the forward-facing "probe" behind the screen, which is remarkably similar to (albeit far smaller than) the probe that extended from the front of the tracker used in the movie.
In the CGI trailer "Improvise" seen at Gamescom 2014, the motion tracker differed heavily from its in-game appearance. The tracker in the trailer was designed by Maciej Kuciara, who notably incorporated a Hama self-timer in the design of the tracker, despite the self-timer being a part of the Motion Tracker prop used in Aliens and the game itself being based heavily on Alien.
- Dan O'Bannon, Ronald Shusett (writers) and Ridley Scott (director). Alien [DVD]. 20th Century Fox.
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