There were to levers in a pitch black room, one was labed normal mode an the other was labed hard mode. Being the dare devil you are you flipped the hard mode lever and was teleported into the same room as before you saw the levers. After a few minutes of defending off the animatronics Xor showed up, did Dee Dee get replaces in hard mode or something? Xor twitched a lot before adding a new animatronic to deal with, it was RWQFSFASXC