First get latias or latios (depending on game) train it to lv.67 and give it a sitrus berry to hold go to mossdeep space center and talk to the man in white he should say,That was successful launch 67 would you want to go on the next lauch if he deosn't say 67 then train your latios or latias to lv.77 and try again.
No you can't catch deoxys by using cheats
You can't.
i did not catch deoxys without action replay it is really easy with action replay
game shark umbday
No, you can't catch Deoxys on Pokemon Diamond & Pearl unless you have cheats. You can transfer it from your GBA to Pokemon Diamond and Pearl though
i don't think you can
go to the lilycove then swim at the sea for 10 hours then its all yours
No.
The only way to catch Deoxys is by going to a Nintendo Event (which already passed), or get Deoxys from a friend who is willing to trade one via Wi-Fi or via Wireless connection.
You catch deoxys at birth island.
You can't catch Deoxys in Silver..
Deoxys is obtainable by getting the birth iland ticket from a secret event card and talking to your dad and once that is done just ride the farrie.