My shiny male Mightyena named Goldie I had in Ruby. It was the first pokemon I caught in the game and stayed on my team till the end of the game. It stayed on my team through the whole game and was even on my party when I faced the elit four. You know one of those pokemon where when you send it out to battle you trust it and have no worries it's going to fail? That was Goldie to me. My brother killed Goldie one day when he spilled water on my game and erased the game. The funny thing was I had no idea what a shiny was till later.