Well there is only one way i know here it is
Use Action replay or GameShark to slove your problems if you cant find it in the shops buy it of eBay heres the links
Gameshark:
http://cgi.eBay.co.UK/Gameboy-Advance-GBA-SP-Micro-GAMESHARK-Game-Shark-NEW_W0QQitemZ150284281943QQcmdZViewItem?hash=item150284281943&_trksid=p3286.m63.l1177
Action Replay:
http://cgi.eBay.co.UK/GBA-Action-Replay-Max-SP-DS-Console-Cheat-System-NEW_W0QQitemZ370077041111QQcmdZViewItem?hash=item370077041111&_trkparms=72%3A984%7C39%3A1%7C66%3A2%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14
Good Luck M8 ;)
no
It is rather unfortunate that you can not get Deoxys in Emerald, however, it is possible if you go to a Nintendo Event.
Besides cheating and Nintendo Events, there are no known ways of getting Deoxys.
You can't without cheating.
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.
You can get Bulbasaur by trading from FireRed or LeafGreen. Deoxys and Mew are only available through trading with others and special Nintendo Events.
You must obtain Deoxys from Birth Island in Emerald.
you can only get deoxys in an event
In Ruby and Sapphire, you cannot get Deoxys without trading it. In Emerald, FireRed and LeafGreen, you need the Aurora Ticket, which is an event item. The only way to get an Aurora Ticket now is by cheating.
To get deoxys you have to migrate for emerald or trade.
no
This is not the way to catch Deoxys in Pokemon Emerald. You need an Action Replay or Gameshark in order to catch Deoxys.