From moment to moment, you're checking the doors, cameras, and lights to make sure those animatronics aren't sneaking up on you. You have to be careful not to run out of power, or you'll be totally defenseless. It's this constant balancing act between keeping the lights on and conserving power that makes every night a thrilling challenge.
What you'll first notice is how slowly the animatronics move when they're not in sight, but the instant you blink, they can be right in front of you. The sound design is also amazing, making every creak and groan sound like the animatronics are right behind you.