*Did you know that the Slash and Bust system all started with one of the team members favoring Purple Nakoruru?
*The franchise itself concepted by various Japanese and Western media of the late 80s and early 90s. The team even said the series was heavily inspired by mecha anime, which there's even concept art of it!
* Concept art notes:
Nakoruru - almost following the footsteps of Chun-Li and Mai. She originally had a sexy, mature face, a big bust and very toned legs out in the open.
Rimururu - almost followed her sister's route. Many of her concept art for 3 has the Purple Nakoruru smirks. At one point, both sisters have the originals and the evil doppelgangers in one setting. Rimururu also shown to have Shikuru, the wolf in Purple Nakoruru/Rera's moveset.
Seiger - Originally had the same design as Krauser from Fatal Fury/KOF with an axe as his weapon.
Cham Cham - Has some art that she looks more feral. At one point, she was originally going to be an actual feline character!
There were tons on unused characters and concepts, including various forms of monsters, samurai and ninjas that was supposed to be shown in 2 and 3.