You actually can. You just need to use mystery event or mystery gift.
Cheat or Nintendo Event
wireless adapter, mystery gift option, and a person who has Pokemon emerald
You must get them at a Nintendo Event. You must get them at a Nintendo Event.
To get the mystic island on Pokemon Emerald you must acquire the Aurora ticket, Old sea map, or Mystic Ticket from a live Nintendo event. These allow you to travel to Naval rock, Birth and Faraway island to encounter legendary Pokemon.
go to a Nintendo event
You half to go to a Nintendo event or use a cheat device.
you would need the mystic ticket only available from Nintendo event or gameshark
the ho-oh (mystic) ticket can only be obtained through official Nintendo Events,
latias,latios,rayquaza,kyogre,groudon,regirock,regice,and last but not least registeel unless you have a mystic ticket from and Nintendo
Its not possible to get any other way.
By attending a NoA event or by using Mystery Gift. NoA Event = Nintendo of America Event
You have to go to a Nintendo event. For more info, go to http://www.psypokes.com/rselgfr/events.php.