You find him in Mt corentet after you have defeated the elite 4 20 times.
the only way u can see it is through a Nintendo event or action replay either way u get to capture it
An archeus is the vital principle or force believed by Paracelsians, a medical movement of 16-17th century Europe, to be responsible for alchemical reactions within living bodies.
You have to trade it from D/P/Pt.
use mystery gift and go 2 spear pillar
Its about 500 feet above the spear piller you need Nintendo event
In Pokémon Platinum, you would be able to catch Arceus in the Spear Pillar provided you have the Azure Flute before you beat Cynthia, the Pokémon League Champion for the first time however the Azure Flute cannot be found in the games and the Azure Flute was never distributed.
You can't get Arceus in the game. The only legitimate way is to migrate it from other games or you can get one from events.
Yes you can with two ways.First way is to trade from Pokemon pearl diamond and platinum.Second way is throught an event of Pokemon archeus
I'm suprised that your game didn't reset like mine... but I'd re-use the action replay, turn OFF the modifier code, then play the game. (You might want to save if that works)
Platinum
in SS, there are Lugia, HO-OH, latios(may be latias not sure, but one of hem), mewtwo, the three dogs, the three birds, Kyogre(i think its kyogre, groudon in HG), possibly raquaza, if you have Groudon from HG; Archeus, Giratina Dialga and Palkia(Giratina Dialga and Palkia require you to have Archeus with you when you go to ruins of alph and go to archeologists' house and you may only chose one of them. you will also only get them at lv. 1).