No, you cannot. You can, however, download an emulator (I prefer VisualBoyAdvance) and make a ROM out of it (or find a emerald ROM) and find a cheat to enter. In VBA, it's really easy to enter codes (copy; paste. no "M" code required). I have downloaded Pokemon Emerald it is really easy.
you don't. You can't find either Mew or Mewtwo in Emerald; you have to trade from FireRed or LeafGreen to get Mewtwo. You can't get Mew without an event or cheating.
Faraway Island.
you need action replay
In Faraway Island you have to chase mew in really tall grass when you are near her she will battle you
Mew cannot be found in firered only emerald can via Nintendo event.
u go 2 farawayland
There are real if you believe they are.
yes,and you can only get him on emerald.
Mew doesn't evolve at all.
Yes
You cannot get Mew legit in Pokemon FireRed, for the event for Mew has ended. You would need to use a GameShark or trade for it from Pokemon Emerald.
I'm not all that sure about how you get it.(problabe an event)But if you get to the island you climb a hill and belive it or not YOU WILL FIND A MEW IN EMERALD!!!!