BB

BB acts much more confident than she is in the ring, and is quite introverted, needing her space often. She's friendly, but outside of the ring she's awkward when talking to strangers, and since she often doesn't know what to say to people, she prefers to avoid that if she can. She has a fear of being seen as "soft" or "weak" by herself, but also by others. Not to say she isn't willing to help others, but she's scared of her own emotions, which is why she rejects the idea that Chandi could possibly ever like her for a long time. She doesn't like herself very much, but she keeps fighting because, although she doesn't particularly enjoy it, it gives her some sense of fulfillment. Before she really befriends Chandi, she kind of hates the sight of her because Chandi inadvertently reminds BB of all she'll never have- little does she know, Chandi actually does return those feelings. They do get together eventually, though.
Her tail is basically just a breadboard and putting different circuits on it can give her different abilities (the lights are mostly just for fun though). Among these abilities are enhanced speed, strength, and heightened senses. However, she can't just boost these infinitely, she needs the proper circuits, programming, and energy (which comes from food/sleep like normal human energy). The breadboard also has a limit to its energy output. She can move her tail, but it's quite heavy, so she usually chooses not to. BB is a very competent fighter, considered to be one of the top fighters in the ring, although she doesn't appreciate the attention much.