Is there a shiny egg code for Pokemon emerald?

First go talk to your mom after you beat the league.Then she will ask you which colour is the Pokemon fly around.Say red , next catch a rydon with 99 pokeballs in your "slot".then talk to the game programmer in the game.next go to the art museum and walk in & out 10 times.after put a female marill with a light ball and a ditto holding sea insenses.wait 2 hours and collect your shiny blastouse that know hydro cannon and growl.(he is yellow by the way).