Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A piece of cake	Complete the game in hardcore mode.
Don't blink	Meet the owl in the game animatronics.
Elementary, dear Bishop	Collect all the notes.
Met a Kitten	Meet the cat in the game animatronics.
Met a Wolf	Meet the wolf in the game animatronics.
Oh really?	Complete the game in easy mode.
Survivor	Survive without ventilation.