I'm curious, what engine did you build this in? Or are you coding it from scratch? I've never thought about making a fighting game, so I wouldn't even know where to start! <3
I make my games in Construct 3! I built this fighting game setup myself in C3, though it's pretty rough around the edges currently. Each character is more or less just a "skin" for now, until I get the time to really flesh it out and add things like unique character moves.