Bonnie

Bonnie, aka Bonnie the Rabbit, is an antagonist in Five Nights at Freddy's and a returning character for the Ultimate Custom Night.

Appearance
Bonnie the Bunny is a faded purple Rabbit animatronic wearing a deep crimson bowtie with lighter violet accents notably on his ears, belly, and snout. Similar to most animatronics from the first game, Bonnie only sports teeth on his bottom jaw, but they are dome-shaped with a flat top. Bonnie has no eyebrows, unlike his bandmates, and is the guitarist for the group, seen holding his rocker-style, red guitar when performing. His suit is covered with a fabric-like material while his bowtie looks like a single, solid object.

Ultimate Custom Night
Bonnie shares Pirate's Cove with Foxy this time around. Unlike Foxy however, if you look at Bonnie on the cameras he will become angry and scream into the camera, disabling all of your cameras for a brief period of time.

In order to tell if Bonnie or Foxy is currently active in Pirate's Cove, the player must view a little figurine on their desk, which changes frequently. If it's a figure of Foxy, the player should be regularly checking Pirate's Cove to keep him at bay. However if the figure on your desk is Bonnie, you should avoid looking at Pirate's Cove so that Bonnie won't knock out your cams.

Trivia

 * Bonnie was the second-to-last character programmed in the UCN roster at 98%.
 * Bonnie flashing his glowing endoskeleton eyes when agitated too much in his mechanic might be a reference to his camera poses in the original Five Nights at Freddy's, where most of them consist of him either glaring or staring at the player with increasing aggression.
 * Unlike the rest of the original animatronics (excluding the original Golden Freddy), Bonnie isn't given a jumpscare, instead a brief shot of him screaming at the Player's face when viewing Pirate's Cove.
 * When seen in the camera, Bonnie’s screaming sound affect is the same as the one you hear in FNAF 1 when the player is killed by one of the animatronics.