If i can remember it came out sometime in 2009 but awhile back im not 100% sure tho sorry
arceus is an event pokemon.
You can only get Arceus by an Event.
Arceus is a special event pokemon. The only way to get it is to get it at a special event or to hack the game.
Event Pokemon or Action Replay
You Can Get Arceus By,Action Replay,You Should Have Gone To The Arceus Event,There Will Be A New Arceus Event Which Involves The 12th Movie Arceus.
You Can`t!!!
24/5/2008
The strongest Pokemon in Platinum is probably Arceus, to get Arceus, you need a mystery event, but that event is finished now. :( The second strongest Pokemon would probably have to be Giratina, or probably dialga or palkia.
Yes you can get Darkrai , Arceus and Shaymin
The event is over so only ways trade or cheat.
pokemon events, or trade the event pokemon from a diamond/pearl/platinum game.
Arceus is not an available Pokemon in Pokemon Sapphire. Arcues is only available to Pokemon Diamond, Pearl, and Platinum via an event.