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The player must find weapons and security cards in order to fend off enemies and access new levels of the base, activate the base's self-destruct mechanism, and escape in the escape pod. At the start of the game, Lewis is in the base's brig and has no weapons, motion tracker, or security clearance. When playing as Private Lewis, the player's goal is to escape a military base which has been invaded by Aliens and Predators. Killing an enemy while visible, conversely, results in an increase in honor points which in turn allows access to more weapons. Killing an enemy while invisible results in a loss of honor points, which can in turn result in losing many of the player's equipped weapons. Weapons and scoring when playing as the Predator are based on how the player chooses to kill enemies.
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The Predator uses elevators to travel between levels of the ship, is able to carry medical kits which it uses to recover health, and can use a cloaking device to become invisible.
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The Alien is unable to use elevators and instead travels through air ducts in order to travel between levels of the ship.Īs the Predator, the player's objective is to reach and kill the Alien queen in order to claim her skull. The Alien is unable to heal itself from injuries and instead "cocoons" marines if the Alien dies a cocooned marine will become a new Alien, allowing the player to continue from that location. The player must fight numerous marines and Predators through various sublevels of the ship in order to reach the Queen. When playing as the Alien, the player's objective is to rescue the Alien Queen who is being held captive on a Predator spaceship. Each player character has its own scenario, weapons, and abilities. The game is a first-person shooter taking place on flat plane environments with two-dimensional sprites. All civilians (and USCMC recruits) in the area are evacuated and the colonial marines go into defensive positions to protect the base. The USS Golgotha, a United States Colonial Marine Corps training space station built by Weyland-Yutani, detects a Predator ship and a Space Jockey Boneship landing on the station.
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