I enjoyed the game a lot.Chapter 3 gave me the goose bumps, nicely done.I still don't get how you get the friend achievement, stood infront of that guy for more than a minute and nothing happened, i even tried to do on every single chapter he was available on.Nothing.I guess he really is a tough guy after all.
Edit: Found out how to do it, the hitbox of the guy was the problem, sorry for the late edit