One moment to remember.
OK, I can make some mistakes while retelling, but I don't have a perfect memory, you must understand that.
So, there is a base, which is controlled by some crazy computer and it can manipulate some doors and stuff, which is totally understandable. And at one point you come to a closed door and computer starts giving you a long speech in a calm "computer" voice. It is telling something about how cool it is and so on, but at the end of the speech, computer screams VERY LOUDLY "... and now you die!!!". The door opens at the same time and a huge scary monster jumps at you. My pants were almost wet.
In other words, I don't regret playing the game only because of the situation described above. If a game gives you any emotions except antipathн, it is easily worth the time and money spent.