I got started with this character by simply scanning my pixel art database with an AI consultant.

I directed this AI unit to recompile all Pixel Artwork to generate a "Bat Girl".

Incidentally, during a previous search of a, immoral nature, ehem...

I kept receiving images of characters in the same blue swimsuit,

So i happened to have used the negative tags function (Tags which I do not want in my results)

which still contained the words blue and body suit.

As a result, all the results i got for "Batgirl " had a red hell-like tint.

Furthermore, once i added the tag "Horns",

i continued to get busty looking girls in 2 piece outfits,

which closely resembled undergarments.

I thought, hey, this is pretty hot, but the prompt handling of the AI had reached a bottleneck.

It continued feeding me the same type of characters. Which, when facing away, viewed at a distance, of shown

in headgear or wearing a mask, could reasonably be views of the same character.

So I divided her into 3 main characters, the redhead, the bat knight, and the brunette dark knight. 

While the red scarved and masked magician became the sorceress character.

The Bat label did add several demonic features, from wings and fangs, to a full on furry creature look.

This allowed me to justify the character undergoing transformations, leading from her full human form, 

to a fully horned form with giant wings and claws.

The fact some images grouped several characters, in cases in a versus style juxtaposition, in others facing other,

equally threatening beasts or demons, naturally set the stage for enemy and boss encounters.

While these became a perfect setup for a pixel art game centered around ATB style battles against creatures and bosses,

there was also some potential for a web comic or visual miniseries. Most likely a combination of both.

I invite anybody with a story, or gaming software but a lack of characters, to give this a try.