Pluto appears not to be much different from his appearance from the Disney universe, apart from his face that appears to be rather gloomy-looking and wrinkly with black, empty eyes and no teeth, almost like a wearable suit. His body seems to be slightly thinner to the point of being almost skeleton-like. His green collar is also missing.
Pluto's behavior is similar to Disembodied and Acephalous's head, attracting other suits into the office rather than being hostile.
Pluto's locations are unknown, but in Remastered 3.0 he will teleport to the far left side of the office randomly during Night 3/5.