no you can not catch mew unless you use poke transfer trade or event witch I don't know when the next one is.
in pokemon emerald
How do you catch rayquaza in Pokemon black and white
No. Unfortunately you'll have to cheat.. :'(
you cant
only if you cheat with a gameshark or action replay
cheat ar or some sort of an event
trade it from someone who did cheat that way you didn't cheat
use a cheat that enables you to catch their pokemon. i HATE that cheat, BECAUSE IT IS A CHEAT!
You can with the action replay Pokemon modifier cheat.
The only other way to catch it is to cheat.
Don't cheat and use Poké Balls!
yes but you need this cheat to activate it. xbbyrbrl. good luck