Bunnie is a Mobian rabbit with mainly yellow fur with white fur around her muzzle. She also has green eyes and pink eyelids. For attire, Bunnie wears a pink leotard. Bunnie's most characteristic features however, are her mechanical limbs, with her both left arm and legs being mechanical due to roboticization. 

Bunnie is a very warm and friendly person who always is ready to help others. She is always there to offer a shoulder to lean on, namely when she helps calm or comfort Sally whenever she has problematic topics on her mind. She also has a maternal side to her, as seen by how she takes care of the young Tails by reading him bedtime stories and teaching him martial arts.

Bunnie is very emotional when it comes to her robotic body. She evidently misses being a fully organic being, as she was very happy about regaining her organic body parts when she was temporarily de-roboticized and would cry when her robotic parts came back.

Bunnie is usually patient and tolerant. However, she does have a limit for much she can take, as she often get irritated by Antoine's clumsiness and pompous behavior when they have to do something together.