i heard from pokemon.com in 2004 the guy at the space center is suposed to say 56 then ask do you wanna go to the moon...then they said you have to complete 200 of your pokedex beat the battle tower 100 times or more.. and beat the league at least once..deoxys is not even on the game you have to cheat or go to a nintendo thing..you can only get jirachi thats what it's about anyways not deoxys.
you can only go to the moon once..meaning you got one shot...
pokemon.com might still have it on there but i say not..they released this data in jan.27,2004