- We could have, on the future....CHAKAN, from Genesis. That char was amazing!
I never played the game, but I recall some praise of it in game magazines when it was released.
The dual wielding doesn't open a lot o possiblities as far as bases go - the only one that comes to mind, oddly, is Shiki, since she also carries 2 weapons. I don't recall if the NGPC Last Blade also has Mukuro, who'd look adequately undead for the occasion to boot...
- Miss X could be very humoristic. For example, "she" could have the Rainbow Insland`s rainbows as one move 
It'd look a bit odd, but the concept was silly from the get-go... maybe on that F, D, DF + Kick special of hir, to take advantage of the move's arc?...