you go to the scufic chambers and catch all 28 or 26 im not completely shore
you have to beat elite 4 then catch all unowns.
you catch unowns just to fill out your unown notes. nothing happens when you catch all 28 of them including ! and ?
once you catch all the unown something really cool happens its lik you either go and kick lugia's ass or catch Ho Ho and Deoxy's yo choice
you get celibi
you have to catch all 28 unowns, then go to prof. oak.he'll give you mystic ticket go to vermillion. go to naval rock.catch ho-oh and lugia
catch all the different unowns at lower right in the ruins.
Catch all the Pokemon!
I dont know what happen in diamond, but in platinum you can catch ! and ? unowns.
You have to trade and catch as much Pokemon as you can
Catch all Unowns (exept ! and ?) Then go to Route 214, and from there, to Mainiac Tunnel, you will find he had finished it. Then follow it.
if you catch all 28 unknown, including the exclamation mark and question mark unowns, the unowns will spell the alphabet and question & exclamation mark unowns i really dont know what they do.
To catch Unown, you must go to the Ruins of Alph. Go inside of the ruins, and all the Pokemon inside are Unowns.