QWR

This specific character is named QWR representing a Bunny similar to the Shadow Animatronics that being Shadow Freddys, General Shadow Freddy & The BlackRabbit, but mostly on The BlackRabbit (known as General RXQ) as you can see at the end on the Special Strike Rebellion Trailer shows the BlackRabbit head

with no ears then moves to glowing sharped teeth then gives out a creepy laugh the shows himself in the dark not showing his full body later on he has been appearing in a lot lately but one time his body was almost fully seen he found Toy Freddy and put his hand over on his head tearing the head out and hide the body but left the head Behind