Take your save, create the Saved folder and replicate all subfolders in the new gamma emerald folder. It should be like C;\your installation folder\windows\Pokemon Gamma Emerald\PokemonEmerald\Saved\SaveGames .and place your save there :) Enjoy
something changed, the same way didn't work since a week ago.
I want to play new version with same save file, how can I do?
