Springtrap

Springtrap is an animatronic in Ultimate Custom Night and was the main antagonist in FNaF 3.

Appearance
Springtrap is an olive coloured bunny with grey eyes. His whole body is covered in tears revealing his endoskeleton and multiple wires. Half of his right ear is torn off and a single button is visible on his chest. His legs are torn from his shins down, exposing his endoskeleton. He has a permant grin and if you look closely you can see organs inside his chest and muscle tissue around his feet.

Mechanic
Springtrap: He climbs around in the vent system, making his way toward the vent opening embedded in the wall in front of you. Track him by watching the vent monitor. He moves silently, so don't bother listening for him, but when he is poised to attack you will see his face looking back at you from the vent. Close the vent door on him to send him away.

Strategy
When you lower your monitor, have a look around the office for animatronics in doorways and vent openings. Springtrap is visible in the vent opening so close the door on him when you see his face staring back at you.