You can't catch Deoxys without having gone to a Nintendo Event (which has been passed for several years now) where you get something that allows you to go to the island where you can catch Deoxys, or without cheating. It's impossible.
no
It is rather unfortunate that you can not get Deoxys in Emerald, however, it is possible if you go to a Nintendo Event.
You can't without cheating.
Besides cheating and Nintendo Events, there are no known ways of getting Deoxys.
Deoxys.
There is no other way, unless you were to trade.
You can get Bulbasaur by trading from FireRed or LeafGreen. Deoxys and Mew are only available through trading with others and special Nintendo Events.
This is not the way to catch Deoxys in Pokemon Emerald. You need an Action Replay or Gameshark in order to catch Deoxys.
No, as of 2014 there is not a listed cheat to get Deoxys in Pokemon Emerald for Visual Boy Advance. The Deoxys does not evolve into any other type of Pokemon.
Deoxys is a legendary Pokemon and cannot breed in Pokemon Emerald. This Pokemon can only be obtained through trade and special Live Nintendo events.
cheats
Birth island.