You need wifi to get them from home, others are at places like GameStop and toys r us, check serebii.net
There no pokemon event
go to an event
there will be a next event on pokemon black and white
as long as the event is still going on, there is a way. it involves getting the same "event gift" in Pokemon diamond/pearl and trading to Pokemon platinum.
there is a Nintendo event maybe at gamestop and go to it with Pokemon heartgold and soulsilver and there you will get celibi
action replay
Arceus is a event Pokemon so get it from a event thing.
u had to be in the special Pokemon event
deoxys is an event pokemon. that event passed forever ago
meloda is an event pokemon, the date of the event is unknown
Unless you cheat, or trade you cannot get the event Pokemon as they expired ages ago.
Pokemon event.