with action replay, but I don't remember the code.
No, you cannot get Jirachi in Pokemon platinum.
No, it is inpossible to catch Jirachi on Diamon, Pearl or Platinum.
There Will Be A Upcoming Pokemon Event And It Is About Jirachi.
You r@pe him DO what YOU want TO DO with Jirachi do you have to ask that??
you trade it from other games
with mystery gift
it's a game not a thing you can get (PS if you do get it you can take the code from the game when you get jirachi and you can put jirachi on Pokemon platinum) X24
Jirachi only gives a wish on the movie.
Jirachi learns Trick by 1 of the Move Tutors in Pokémon Platinum, HeartGold or SoulSilver teaching it to it (Jirachi.)
Oak's letter is in diamond, pearl and platinum and it doesn't give you jirachi it gives you shaymin.
You must get Jirachi from an event in Diamond, Pearl, or Platinum then trade to heartgold. There was also a Wi-Fi event in which you could receive a Jirachi which has since passed.
No, it might be given out by Nintendo events or something