stick to your region and they'll all work, some just don't work. Dont use brickblocker anymore, use wiu or wum, (search this forum)
using that you can rip the updates out or replace them with your region. that could be the main reason why you games aren't working, if you have 3.3 firmware and you brickblocked them.
you could install homebrew channel, then gekco os and run it through there and try.