The nerve bar is represented by the red bar attached to the heart icon at the top of the screen. If your nerve bar runs out, your character will die and have to restart the level. Remember, your game character is afraid of two things: LightEater monsters and the dark! Encountering either will decrease your nerve bar, so make sure you’re choose wisely when you turn your flashlight on or off. When your flashlight is on and no LightEaters are around, your nerve will regenerate, but don’t forget to conserve your flashlight battery!