Bonnie the Bunny

Bonnie is a main antagonist of Five Nights at Freddy's, being a purple animatronic bunny in a bowtie. Like his fellow animatronics Freddy and Chica (and formerly Foxy), Bonnie is a friendly child entertainer during the day while being housed at Freddy Fazbear's Pizza, but kills any human he sees during the night.

Role in the game
Bonnie is the most active enemy in the game, which follows a rookie security officer on the nightshift who's only defense from the homicidal animatronics is a pair of hardly powered steel doors and his cramped office. Bonnie is almost always the first the move, slowly making his way to the player's office (teleporting almost instantly in later nights) and will always appear on the left doorway. The player can lock him out, but if they don't, he will simply stand there, and will forever stand there until the player checks the camera or the power runs out. If they check the camera, they've instantly doomed themselves to a fatal jumpscare from Bonnie the moment they turn the camera off. If the power runs out, Freddy will get them.