This save file has completed the game and unlocked all of the minigames. It is in the DeSmuME format.
To play this game in DeSmuME use the build from here:
https://github.com/TASEmulators/desmume/pull/737
To play this game in DeSmuME use the build from here:
https://github.com/TASEmulators/desmume/pull/737