Am I the only one kind of against logging in with a e-mail and not a user id ? I find it a tad annoying
I guess people have their own preferences. There are it's own pros and cons to using e-mail login credentials.
I don't like use the whole "Email Address" as a user id for RedFox but Ehhh it's w/e just gonna have to **** it up and deal with it.
You only "have" to if your installation fails. I recommend that you un-install all previous files before installing the latest version. http://forums.playredfox.com/index.php?threads/rumble-fighter-installation-guide.3350/
Yes you would have to uninstall Rumble Fighter (GC) and Re-install it from (RedFox) or you won't be able to play the game.
The GC edition of RF is still on my computer so no. Edit: If you meant to actually play the game you can no longer use the ver that GC has. But I have both files / games and I'm not experiencing any problems.