Two of them can be accessed by walking around in the ruins and the other two can be accessed by the union cave :) hope this helps you -nikee
in Pokemon heartgold ruins of alph in Pokemon soulsilver ruins of alph
after getting all the unowns at Ruins of Alph when you go in the Ruins of Alph a celebi comes
Youtube
You can get all the Unknown, A-Z ! and ?
by completing the puzzels in the ruins of alph
go to the ruins of alph located in johto
you are a hobo
When you complete all the puzzles in the ruins of alph a guy will give you the unown report, when you catch all the unowns go to the house in the ruins of alph and give it to him, he will let you battle arceus LV.70.
Flick the panels and that's all
just keep running through the ruins of alph until you catch all of them
you first have to capture ALL the other unown letters
Smash all the rocks you can find (that you are able to do) and it will be inder one of them.