You needed to upgrade the staff bot head in order to defeat Roxy. The upgrader is located in the Fazcade. But when you go to turn on the machine, the Office power goes out. So, you have to find 4 switches. The first one is in the boys bathroom. So, you turn on the first switch and go to exit when a giant white hand reaches in and slams the ground. What do you do? The thing can’t get into the bathroom, so you can at the very least try to plan.