What is the Action Reply cheat code to get Jirachi in Pokemon Emerald?
AR Cheat Code for Jirachi
Do a Google search for cheat codes for Pokemon that might be
able to help you.
In mossedeep city, by the white rock, a girl should be standing
there. If you hack the game the girl will give you a wish tag and
you can use it on the white rock to battle a lv30 jrachi!