But it's not that the Capcom devs have spent the past 20 years studying human psychology to deliver the perfect jump scare. They did something a lot more organic than that: They let Mr. X off the leash.
Mr. X isn't like other, lazy video game bosses who lounge around their perfectly staged volcano lairs waiting for a cutscene to trigger. Mr. X has s**t to do and people to rip in half, so he's always out there looking for the player character. This was confirmed by YouTuber SheSez. While exploring the game with an out-of-bounds camera for his series Boundary Break, he noticed Mr. X still stomping around the place like an angry dad looking for the remote. That's because, like the clever xenomorph in the closet-hiding simulator Alien: Isolation, Mr. X is a dynamic villain. Or more appropriately, an ambient Michael Meyers. This unkillable, unstoppable force is always searching, listening, and ambling slowly toward you and your brittle spine.