you do not do anything really but when you go in there is letters on the wall read this and it will tell you were to find a roo with a rare candy and other items in it it is also the only place that you can get unknown in the whole game
The Solaceon Ruins.
no, these Pokemon are unknown in Pokemon platinum
They are the alphabet :)
That is unknown.
you can get seals with the unknows
In Diamond it is in the ruins with the Unknown, I am not sure about Platinum though.
It's currently unknown which countries Pokemon Platinum is gonna be launched anywhere else, other than Japan.
lightening bolt
At the Solaceon Ruins in Solaceon Town, different rooms has specific Unknown in them. . . so its kind of HARD to get a specific Unknown. . .
You can find the M form of Unown in the Solaceon Ruins of Pokemon Platinum. This form of Unown appears in the dead-end rooms of the Ruins.
Yes you can at the Solaceon Ruins. Battle/Catch 99 Unknown and the 100th Pokemon you see will be Celebi.
Unknown are in Pokemon games for events like in Pokemon diamond, Peral and Platinum when you have to catch all the unknown and show them to the tunnel maniac under hearthome city i think and then you get a prize!