Although it goes a little overboard (3 headed aliens, aliens that morph, fly, spit acid, roll into armored balls, etc...) mostly because it is a video game, this game does capture the feel of Aliens rather well. I remember playing this in the arcade when it came out in 1990 and was amazed by it. Somehow, something about it is just so Aliens it's creepy. If you can find it, give it a try. I guess there's arcade emulators out there on the internet now.