No you don't need to beat them. When I started the game when I was walking from New Bark Town to cherrygrove city I encountered a wild shiny sentret, so there is you answer.
ya mama
You can't and that is a bummer. Sorry by the way.
youcan not get shinys on Sapphire
you get dialga and have breed it then it unlocks all shinys
yes, there should be a code on it already that makes all the Pokemon you see a shiny although when you turn the ds off you will bump into normal Pokemon again. don't worry, the shinys that you catch will still be shinys. also there should already be a code that lets you choose any Pokemon that you want to bump into, so use both codes and you will have all the Pokemon as shineys and non shinys in no time. :)
Shiny Pokemon could be anywhere it's very hard to see one though.
in trophy garden on route 212
alot like 2 shinys
You mean shinys? Well they are all different for each pokemon=(
In Pokemon, there is only a slight chance that you can find a shiny Pokemon. In Pokemon Diamond, Pearl, and Platinum, there were ways that you can increase your chance of encountering shinys. But since catching shinys depends on a random chance event, there is a 0.01220703125% chance of finding one in any encounter in the wild.
yeah it's possible and you have a greater chance from 1 in 1,892 (without shiny parents) to 1 in 64 (with shiny parents) but it's still pretty unlikely you will get a shiny from an egg.
Oh really have luck on your side with that the only shinys I have are a magikarp and a geodude