You have to trade the arceus over from another game check out pokebomb.co.cc if you want to keep up to date with Pokemon info
trade pokemon
You can't.
Arceas has to be caught in Pokemon diamond, pearl, or platinum, then traded to Soul-Silver and HeartGold.
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Sadly, you can't get Arceus in HeartGold or SoulSilver. The only way to have it in HG/SS is to trade it from either Diamond, Pearl or Platinum.
it's tough but you have to trade palkia, dialga and giratina over to either heartGold or soulSilver. then you must go to the ruins of alph and talk to the arcealogist and he will bring you to the ebedded tower to where arceas is. you find him at lv.70. i hope you get him! -RR14
with action replay or by trading it
get an action replay, get Pokemon modifier and full pokedex cheats, then find arceas!
this site dosent know arceas is in soulsilver
You can't find him, unless you have a action-replay, or you can trade with a friend.
Arceas is thebeginningperson in Pokemon
You can't