Slender: The Arrival

This trophy can be a little frustrating if it doesn't come naturally. An instant kill isn't something you can really manufacture - Slenderman needs to be the one to make it happen. Odds are pretty good that this will happen naturally, and when it does it will likely come as both a shock and a frustration. If you don't get this during your regular playthroughs, I suggest booting up the Into the Abyss level to try and make it happen. Activate a generator and walk back and forth in a small hallway, and eventually Slenderman will pop up right on top of you, earning you this trophy.