Needle is a sewing needle who hates being called "Needy." Most people call her that name by accident or even say the word for unrelated reasons, but she will still slap them in retaliation after being called such.
When she’s not being given an unfortunate nickname, Needle is shown to be very kind, approachable, and supportive. She can also be a little on the competitive side.
Needle is shown to be quite athletic, and extremely fast. And I mean EXTREMELY fast.