You can't unless you have Pokémon Channel for the GameCube and a GC-GBA link controller. Then you can trasfer Jirachi onto your copy of Sapphire. Hope that helps, Mr. Who.
jirachi is not in sapphire
You can't. You can only get jirachi in ruby and sapphire. You would have to trade from ruby or sapphire.
yes
I think you have to use a cheat to get it.
Jirachi is an event Pokemon, so it has to be received by a Nintendo event. Or you can hack (Best not to).
Jirachi is a legendary Steel and Psychic type Pokemon. It does not occur naturally in Pokemon Sapphire, and can only be obtained through official Nintendo events.
inside the metor false
Jirachi can be obtained from the Pokémon Colosseum Bonus Disk.
Jirachi is only available to people who reserved a copy when Sapphire first came out. They would get a bonus disk, which contained Jirachi. It was meant for you to transfer him to your GBA. Unless you reserved a copy in 2003, or know someone who did, I'm afraid your outta luck.
The only way, I repeat, the ONLY way to get Jirachi on Sapphire without cheating is to connect your Sapphire game to the bonus disc included with pre-ordered copies of Pokemon Colosseum. Good luck finding it on eBay!
ruby, sapphire, emerald, fire red, leaf green
No, Jirachi is only available via Ruby and Sapphire, with either the Pokémon Colosseum Bonus Disc, or Pokémon Channel.