So guys for example I'm playing Pokemon Platinum and I'm right in front of Giratina and I save, then I go battle it, and it's not a Shiny Giratina. Can I just switch off the DS and back on like a million times until the chance comes when I find a shiny Giratina? Or maybe it's like it's decided from the start of the game whether the Giratina you encounter later on will be shiny or not? How does it work? I know the question was not clear. Tell me if I need to elaborate more. Stupid question too, I know, but still, it's never bad to learn..