Im newb in mgs psp because i dont have the original PO. I have PO+. I wonder if those bosses(Python, Null..) in training mode could be unlocked and add to squad as unique character. Is there anyway i can unlock them without import gamesave from PO (T.T)?

Hack, or do something else like download a save.

Just find those people as prisoners on Infinity mission.

You can only find the new uniques on extreme as a prisoner, the uploading is what makes the old ones available.

Are uniques can ONLY BE FOUND in extreme mode?

If you upload your save, then any unique can be found.
If you dont, then only the ones that came with the game will, hence, johnny.

Thanks man, great help!

i started a new save and i did not upload my characters from po but i still found gene in easy cunnigham in normal??? by the way my other save i have uploaded my characters

it says your uniques get uploaded automaticly.

i think it works like this though i have no idea if it is correct if you have any trace of mpo1 on your psp then you can get uniques cuz i got a gamesave before then deleted it and still got uniques cuz i had boss rush