It's impossible to catch Jiratchi in Pokemon Pearl version.
No, it is inpossible to catch Jirachi on Diamon, Pearl or Platinum.
u can't
cheats. that's how.cheats or an eventyou cant you have to trade from diamond and pearl
You cannot find or catch a Jirachi in Pokémon Diamond or Pearl, the only way to acquire it in your game is by trading with another player who has it.
You need to get the Pokemon Colleseum disk. Jirachi can be traded from Pokemon Channel.
You can't catch Jirachi.
You can't in Pearl. To be honest Jirachi was not available in any game. However if you pre-ordered the Pokemon Colosseum Japanese version you would receive the Bonus Disk, in which you could send Jirachi to Pokemon R/S/E then migrate it to Pearl. you can get jirachi from a mystery gift
find it.
trade
To catch JIRACHI you have to use the Pokemon colloseum disk. To catch DEOXYS you have to go to a Pokemon Nintendo promo event and get the aurura ticket downloaded on your game.
Again, Jirachi is an EVENT Pokemon! (sorry for sudden rudeness, I've answered many stupid questions like this one -...-) There was a Jirachi event for Diamond and Pearl that once you traded it to HeartGold/SoulSilver, you unlocked the PokeWalker route, Night Sky's Edge
By buying the Pokemon Colleseum Demo.