I don't think you can't.
i did not catch deoxys without action replay it is really easy with action replay
I don't think its possible without a action replay.
you can you genius well go on youtube and look up cheats for deoxys
you can't do that you need a action replay or R4 if you want cheats. or.... you could probably use the events to get legendaries.but i know you can't use cheats without a action replay
No
No.
you have to trade/migrate it from a different game that has a deoxys or buy a action replay
no cheats without action replay but if you want other amazing cheat codes check out www.cheatcc.com
Im afraid you cant.Deoxys an only be obtained by migrating or using a cheat device(gameshark,action replay ect.)
a while back they had an event at gamestop
dig unerground for a fossil
there are none