I don't think operating an elevator (etc.) compares to hunting down and decimating the entire crew (almost) one by one. Such behavior is so far more advanced th

I don't think operating an elevator (etc.) compares to hunting down and decimating the entire crew (almost) one by one. Such behavior is so far more advanced than anything we see in the second movie. There is a real sense that the alien is just plain smarter than everyone in the crew, and in the end ripley just has to run for it. None of this happens in the second movie, where it's just a slaughter fest.