The only non-hacked shiny I've ever seen was a Shiny Rattatta on a friend's Gold version. Until today, when I bought a used copy of Platinum. Whoever owned it before definitely hacked or glitched whatever, the pack has 995 of everything and freezes a way down the inventory. Also has a shiny Slowpoke, Koffing, Wingull, and two Gyarados. (Not to mention a couple dozen pokemon at 100) It's tempting to keep it instead of starting a new game like I planned, but forcing something to be shiny kinda eliminates the specialness, to me. Anyway. Maybe someday I'll see a legit one.