forgot to add that I think it's specifically keys like enter, ctrl, alt that won't register if too many other keys are pressed but I've played other fighting games on keyboard and it seems like all of the letter/symbol keys would work :)
ok thanks! I will add an option for p2 to play with . and , . not really how I usually design controls, since I often would rather have the playyer use the left hand for movement, but I think this is an ok way to fix it. custom controls might be a little annoying to make, but maybe later. thanks for the help and comments btw.