Night 4 introduces the irritating and dangerous Balloon Boy (BB). All previous animatronics are at their peak aggression. Balloon Boy doesn't jump scare you directly, but his presence is a major hindrance. He will disable your flashlight if he enters your office, leaving you vulnerable to Withered Foxy and other animatronics in the hallway. This night demands perfect execution of your established routine and an even faster reaction time. The Music Box will need almost constant attention. You'll be juggling multiple high-priority threats simultaneously. The limited flashlight battery becomes a critical resource, and BB's ability to disable it makes him a top priority to prevent from entering your office. This night is a significant difficulty spike.
