You cannot beat Night 6 without high-quality headphones. You need to distinguish between left and right footsteps and hear the subtle "breathing" sounds.
Develop a "loop." Left door -> Bed -> Right door -> Bed -> Closet (if needed). ФНаФ 4 - 6 ночь
Don't let the "Freddles" accumulate. Check behind you every couple of door rotations. If there are three, you’re in immediate danger. You cannot beat Night 6 without high-quality headphones
Fredbear runs from left to right. Only go to the door where you hear the footsteps stop. ФНаФ 4 - 6 ночь
Flash the light briefly to see him, then hold the door/closet shut (or keep the light on the bed) until he laughs again and moves back to the hallways.