every letter in the alphabet is a unkown and ? ! are unknowns
28
Unknowns are in the Solaceon Caves, to the right of Solaceon Town. You can find all 28 types there.
it is ruins to the right of soelence town that contain all unknowns exept ! and ? they can be found by capturing all the unknowns and talking to a digger
they give you a legendary
catch all the unknowns
nothing you just have them
nothing
The purpose is just for your pokedex that's it.
Unknowns - 2012 All the Wrong Parts 1-5 was released on: USA: 20 April 2013
that's hard to say you have to look all over in all the caves and it could take hours
Unknowns are represented by letters
You have to trade 'em from FR/LG.