Leave it to toy anime to not take full advantage of it's characters.

Kikuhime better known to us English as Samantha is the boss of the starter villain team the Screws.
While mostly seen as school yard bullies they sort of become chaotic neutrals as the series progressed and eventually get shots at the world championship filling in for the frequently absent Space Medafighter X.
Samantha along with Peppercat had an interesting back story, that while being a bit of an ego maniac, has a more feminine graceful side that she's embarrassed to show, her set up with her friends reminds me very much of Yatterman's Doronjo and her crew, I would've loved to have seen her character evolve more and she should've been the third fighter full time in Team Japan.
Character writing in Medabots was always it's strongest point, the Rubber Robo Gang each having their own pride that they show if the situation calls for it.
Sadly for Samantha she never got a chance to flourish, the abysmal season 3 proving to be Medabots downfall.