Nightmarionne

Nightmarionne is the main antagonist of Fnaf 4 Halloween dlc.

Halloween Update
When Venturian played Fnaf 4 he hated Nightmare bonnie, no matter what he did Bonnie would keep killing him. So when Nightmare Chica killed him, he celebrated as a victor. This could have possibly driven Nightmarionne to fire Plushtrap, Nightmare Chica,Nightmare bonnie and Nightmare foxy. She replaced them with Nightmare ballon boy, Jack O chica, Jack O Bonnie and Nightmare mangle. For some reason Nightmare Freddy did not get fired.

Final night
At the very end of Fnaf 4 Nightmarrionne lead the Nightmare animatronics into battle. After the family dog survived intill 4 AM Nightmarionne had taken over ( and possibly could of killed the other animotronics ) Luckily the dog used his telekinesis to sense where she was. The dog survived his seventh night and Nightmarionne was most likely died.

Trivia

 * It could be possibly that Nightmarionne is the ghost of the dogs brother, in which he stole his biscut
 * Nightmarion even is the nightmare version of Marry.
 * She is dlc for Fnaf 4