Shadow Bonnie

RWQFSFASXC, or Shadow Bonnie, is a hallucination from Five Nights at Freddy's 2. He takes the form of a shadowy Toy Bonnie, with his entire body shrouded in darkness except for a pair of bright white pupils and teeth.

Gameplay Mechanic
RWQFSFASXC will cause the player's office to go pitch black for about ten seconds, forcing the player to listen for audio cues at the doors and the vents. There is no way to avoid him.

Death Screens
RWQFSFASXC cannot kill the player in the Ultimate Custom Night.