You would have to trade it from Diamond, Pearl or Platinum. There is no in game Arceus in Heart Gold or Soul Silver.
Through cheats
how do you get arceus whit cheats in Pokemon heartgold
You can only get Arceus from Pokemon D/P/Pt.
i am sorry but you cannot obtain arceus in Pokemon heartgold or soulsilver.
Yes you can get Arceus if you have a Pokemon platinum,diamond,or pearl and you have giratina dialga and palkia trade them to your Soulsilver and then a mountain will appear somewhere and then Arceus will be in there
You cannot catch Arceus in Pokemon Soulsilver nor Heartgold, You must either transfer a Arceus from D/P/Ptt or Receive one through the Arceus Event.
Without cheats, you can only obtain Arceus through a Pokemon Event.
Only with hacks
Nope arceus is one of those unobtainable Pokemon along with Shaymin, Darkari,Manaphy
You can't get arceus in Pokemon soulsilver unless you trade from another Pokemon game.
What is the che cheat to get an arceus in Pokemon diamond? What is the che cheat to get an arceus in Pokemon diamond? What is the che cheat to get an arceus in Pokemon diamond?
by hacking