Unlockable - Shiny pokemonn (no gameshark or action replay)

OK you get the poke radar,go to a weak area of Pokemon,next put a repel on,now use the radar,you will see the grass wiggle pick one of them to step on,when you've ran into it kill it,now more grass will wiggle,go to the farthest one away from you,keep your streak of the same pokemon going for as long as you can,eventually you'll run into a shiny pokemon,i found a gold shinx.