Yes, I've been playing around with the legendaries script, but all I get is a game's hang up. lol (at least now I can make a legendary battle with any legendary...)
Well, for now, I'll put it as a normal Gyarados (if you want it to be shiny, use a code for that battle, till I or someone could find an answer) There's no more time to waste about it!
[EDIT]: Oh, yeah! There was something else... What do you think if I release two version of Shiny Gold? No, don't get me wrong. It's gonna be the same game Shiny Gold for FR, but the differences will be that in one version the trainers/leaders will be harder, while in the other will be exactly as in the original. That idea just came to my mind right now. That way, I'm gonna be satisfying everyone! (As you can see, I'm always thinking about the public, hehe...)