Enter the eerie, atmospheric world of aliens, where any moment could bring death. Choose up to 20 Colonial Marines, with distinct personalities, to form a powerful squad to fight alongside as you try to defeat the vicious Xenomorphs. Wield authentic weapons, including the pulse rifle, smart gun and flamethrower, to engage in adrenaline-pumping combat. Use cover and blindfire to outshoot Xenos or sneak through Sulaco in heart-racing stealth missions as you watch out for Xenos in the dark. Race to your comrades' rescue in five real-time minutes before they are implanted with Xenos. Experience a variety of storylines and dialogue depending on which Colonial Marines you choose for your team. Immerse yourself in the 2D side-scrolling gameplay with a classic arcade feel coupled with heavy combat and an extensive narrative for a hardcore, retro gaming experience.