This is a third-person shooter in which players assume the role of a soldier battling aliens on a mysterious spaceship. From a top-down perspective, players explore dark corridors and search for key cards, unlock doors, and attempt to power up areas of the ship. Aliens emerge from holes, pods, and passageways to attack the player's character; the soldier uses assault rifles, shotguns, machine guns, flamethrowers, and grenades to kill hostiles, including larger boss aliens. Aliens screech and emit splashes of green blood when killed.
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