That could be done. The harder part would be creating the sprites. If someone does that I could string together the animations, make some axis changes, and attempt to sync the sound. The simplier way would be to edit some sprites of kuromaru and replace them with felicia spirtes.

what are the movement controls for player 1 in this? I think I have tried every key on the key board but I can't choose either player 1's player or make the character do more than attack the empty air in front of them.

I thought I saw a kula video, where she would pounce male enemies and have sex with them. Also sometimes, they'd change female and she hung them by their hands and would whip them or something. Aside from that, I was just wondering what's similar, but I guess that's a one character thing

You're thinking of Ryona Kula. She pounces on the enemy and rapes them...

...Unfortunately it only works on male enemies, and if they don't have the right laying down animation it'll look kinda silly. There is though, a Kyo that's compatible with her. I'm not sure where though.