when you get arceus go to the ruins of alph house and you will bump into the owner he will tell you somthing then there is a cutscene and you will be teleported there
First, you need to have an Arceus. Put it in the first ("walking") slot of your party and go to the Ruins of Alph. If you walk outside the small building, a man will walk out, talk to you and then head off into the ruins. Follow him there and you can eventually get into the Sinjoh ruins.
Chat with our AI personalities
She is in the Sinjoh Ruins. This can only be accessed with bringing an event Arceus to the Ruins of Alph.
The Sinjoh Ruins can only be unlocked by obtaining an Arceus from a Wi-Fi event. By taking that Arceus to the Ruins of Alph and trying to enter the house of the scientists, you can travel to the Sinjoh Ruins by the power of Arceus. The Sinjoh Ruins cannot be found through normal game play.
It has always been level 1 for every Pokemon Platinum game. Similarly, Pokemon SoulSilver and HeartGold has a location called Sinjoh Ruins, which contains Giratina, Dialga, and Palkia at level 1.++
the Sinjoh Ruins are only accessible with an unhacked, legal Arceus, from a Mystery Gift (not the event). Transfer from Diamond/Pearl/Platinum and bring the Arceus as your only Pokemon to the Ruins of Alph. Cynthia will appear, you will follow her and she brings you to the Sinjoh Ruins. since Arceus has only been given out as a Mystery Gift a few times, it is unlikely you will be able to get there
Have Arceus as the main Pokemon in your party, and then go to the Ruins of Alph and head towards the Research Lab, where a researcher will bump into you, and lead you there.