At a press conference in Tokyo, Nintendo’s Shigeru Miyamoto announced that the company will be providing a N64 to GameCube data-transfer service for certain games.
The first game to make use of this service will be Animal Forest which comes out in Japan next week. The Japan-only N64 version was a Pokemon inspired title animal collection game requiring players to spend many hours finding and training various creatures. This data was deemed so precious by Nintendo that it has gone to the trouble of implementing a dedicated facility to pass the game data from one memory save to another.
Players will be required to send in their N64 Game Paks and empty GameCube Memory Cards in to Nintendo. Nintendo will then, for an undisclosed fee, copy the data and return the cards.
It is likely that this procedure will be implemented in all regions for all GameCube N64 updates, though nothing has been confirmed at this time.