unown to shiny unown in FRLG.mp4
Thanks to @theSLAYER "Just catch a bunch of Unown, then change the TID/SID to make it shiny." so I finally understand this, so I created to how to shiny all forms of Unown in FRLG first you need to change first the (Blank Save Version) in either B2/W2 is what you saw on the video uploaded.
If you ask why B2/W2 if the unown I created is from FRLG simple to answer that all pass gen if you go Tool>Data>Encounter Database if you are using either FRLG, RSE, DPPt or HGSS if you using this the other form of unown here will not appear only the Letter "A"
So just follow the video for almost 3 minute
Once you already created non-shiny Unown all form then open PokeFinder 4.0.1 or what build you using right now, click Gen 3 Tools>(choose both IV to PID and PID to IV) the rest you can figure out by watching the video