Hello Tabletoppers

Longtime roleplayer but new to this section, I'm looking to create basically a fighting game RP in the spirit of something like King Of Fighters but thought I might ask for help designing a home-brewed system for combat and general gameplay for it. 

This RP will have two versions.

Arcade mode for those who just want to pick a character and compete.

And Story mode which will be the actual RP version for a character to be taken up as their own through a plot.

If you can offer any help please let me know and I'll share everything I have so far!