Insanity is more of a darker version and more harmful version of Joy. First appearing and dying in Outside In 2. The backstory to Insanity (or how Joy became crazy) was that she became too addicted to the microphone on the control panel. A reason why this happens is that when Joy needed someone to control Riley for her until she hired "volunteers" to make it "better".* Hehehehe~ where’s Riley~? I need to make her HAPPY