How To Get Shinies In Emerald Pokemon Emerald Shinies?

Pokemon emerald shinies? - how to get shinies in emerald

I know that the chances of getting a Shiny Pokemon as 1 / 8500. but I have a gameshark Pokemon Emerald SP with him, and I want to know if the code is to catch Shiny Pokemon I want the Steelix, Machamp, Houndoom, Lapras, Tropius, and raichu.