I have played through all the 5 modes and also the 3 extra modes, and damn, this game is one of the scariest experiences i had. The AI of the monster seems to be incredibly well done, it doesnt just mindlessly run after you, instead, it hides and even manages to suprise you from time to time. Unlike some other games i played where you can predict an enemy ai, this one keeps you guessing what it will do next and when it will come also the feeling of paranoia stays and never seems to fade.

Also the sound design is awesome, love it!