You play as Ripley. You must find and free all the captives hidden around the levels while avoiding the nasty Alien and before the time runs out and aliens burst out.
You are in control of a Predator who receives a distress call from Vega 4 of an attack on the city of New Shangi. Your goal is to wipe out all of the aliens before advancing to the next level.
Life is definitely not bliss on Rubi-Ka. While heading for your new life on the surface, your shuttle is attacked by an unknown alien race, and you barely survive an emergency crash landing.