Well tiday is your lucky day kiddo. Go to pokemonplatinum.com and it will tell you when the arcues event is coming which is very soon
Get to the top of Spear pillar with the azure flute.
when you have the azure flute you go to the spear pillar and youll find him there
you can beat arceus in Pokemon platinum get azure flute in eterna pokemart then go to the spear pillar then you can find arceus lv 80 i have arceus lv 100
Get the azure flute go to spear pillar and stand on the weird design the first step from the cave. Play the azure flute and a stairway will appear and then you will see arceus at the top.
go threw the place and find him at the last part same with arceus but need arzura flute
you cant unless you have an action replay you need to get the azure flute then you use it at spear pillar then go up the stairs that appear then you will see arceus it is at level 70 or 80 so bring your strongest Pokemon
Find all plates and got to spear pillar................. TRICKED YOU....you need the Azure flute or action replay.
You need to have the arzure flute, you go to the top of mt.coronet, step on the platform that looks like a flute, then blow into the arzure flute and stairs will appear. climb up those stairs and you will find arceus!(to get the arzure flute, you need action replay or mystery gift!)
where to find a azure flute without action replay and cheating in pokemon platinum
Officially, Arceus hasn't officially come out in the games yet, you can get it off eBay or try to get the Azure Flute which you summon Arceus with. I have Arceus but I got it with the Azure flute. Keep on persisting, im sure u will find it somewhere, also if you can go to Japan, I think they can give you an arceus at the movies.)
You can not FIND arceus in a city. You must find it through the evnt for Pearl Daimond or Platinum.
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.