>>73456475
People forget how killable it was meant to be
>A key trait of the Alien is its acidic blood, included as another plot device that would forbid the crew to kill or even wound the monster. The screenwriter wanted the creature to be mortal and was radically opposed to making it impenetrable (a trope common in earlier monster films). Ron Cobb, who designed the human technology for the film, eventually suggested the idea of a creature with “acid for blood”. O’Bannon recalled: “Ron Cobb gave continual input to the film right from the very start. He gave us one of the major plot elements: the monster has an incredibly corrosive bloodstream. One of the reasons the monster can’t be cut up or fired at is because its blood would eat right through the ship. That was Ron’s idea and I want everyone to know it — I wanted the thing to be, in every respect, a natural animal, which means yes, if you shoot it, it’ll die.” A scene removed in the final film involved the Alien having its left arm cut off, resulting in a portion of the ship being compromised.
Also didn't Ridley shoot some spear at it?