u have to have an ar and the cheat then after ur probaly still wondering what to do??go to the poke mart and the man in the green shirt talk to him hell give u an azure Flute go to the top of mt cornet were u get dialga!it will ask u to use the azure flute then 100 stairs will apear then go up it ull get arceus!
Well you can go to the arceus event when the movie Arceus and the sky diamond comes out. that is a past event try a gllich
the reason why it won't work is because you need the event arceus from diamond or pearl.
you have to get the arceus event on mystery gift.
ARCEUS get it through event
You can't,it is event-only
get through a gamestop event or by cheats
Arceus is a event Pokemon so get it from a event thing.
You take Arceus to the Ruins of Alph, the event will trigger from there and you will be instructed on what to do. To get Arceus in Heart Gold in the first place, it must be traded from Diamond, Pearl or Platinum.
You can't.
trade it from diamond from a cheat or a special event...
arceus or shiny pichu event
You'd have to trade with someone who has Pearl to get Palkia in Diamond. Arceus' event was never run, there's no legitimate way to obtain him, though you can use a cheat device to trigger the event.