yes you can
in lilycove
You can only get it by Mystery Event.
You actually can. You just need to use mystery event or mystery gift.
During a Nintendo event Nintendo gives out mystery gifts if you bring your Pokemon emerald to the event with a wireless adapter and Nintendo is giving out a gift emerald can receive you can go to a wonder spot and choose mystery gift on your emerald to receive the special gift. But all Nintendo events for emerald have long since passed.
By attending a NoA event or by using Mystery Gift. NoA Event = Nintendo of America Event
enter petalburg pokemon center talk to the guy in the corner who asks you about your profile tell him MYSTERY EVENT IS EXITING turn off your game then turn it on theres the mystery event under your file.
In Pokemon Ruby,You get Groudon,Rayquaza,Regiice,Regirock,Registeel and Latios.In Pokemon Sapphire You get Kyogre,Rayquaza,Regirock,Regiice,Registeel and Latias.If you get the Mystery event or Mystery gift,You can get the tickets to get Jirachi and Deoxys.Extra: In Emerald you can get ALL of those Pokemon (legendary Pokemon in Ruby and Sapphire).But if you get the Eon ticket from Mystery event or Mystery gift,You can go get Latios if you caught Latias and Latias if you caught Latios.(Only in emerald).
In order to catch Registeel in Pokemon diamond, you need to have gotten a level 100 Regigias from a mystery event. This mystery event has passed, so you can no longer get Registeel in Pokemon diamond, unless a friend trades you the mystery event Registeel. The only other way to get Registeel is to trade him from Pokemon emerald, ruby, or sapphire.
wireless adapter, mystery gift option, and a person who has Pokemon emerald
You must either attend a Pokemon event, use mystery gift with someone who has attended an event or use action replay.
THATS EASY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! just link up with another GBA and............................POOF BINGO SHABOP POW WAHHHH
You can get the mystery ticket in Pokemon Events. You can get the mystery ticket in Pokemon Events.