you dont
No, unless you use cheats or trade it from another game.
well,i cant think you could but you can catch the regies answer no
No, not without cheating.
You must have a preordered Pokemon Colosseum disk. Or Pokemon Channel in Australia, Etc. Look it up.
what do you do after you get a mystery gift in emerald?
yes
It is not possible to catch Mew is Pokémon Emerald version without using cheats. The only way to get it would be to trade.
find it.
Nintendo event.
You don't.
To catch Jirachi you must use an AR.
you cant unless you use action reply