Search for repositories on GBAtemp or Smashboards. You are looking for a file named ultimate_save_100.bin . Ensure the file corresponds to your game's update version (e.g., v13.0.1 for Sora DLC). A file from version 3.0 will not work on the latest patch.

If you run a local gaming event, you cannot ask 16 players to sit and wait while you unlock Mewtwo. A 100% save file ensures that every setup has every legal stage (Battlefield/Final Destination versions) and every counterpick available immediately.

Go to the Album (Homebrew Menu). Open JKSV. This app dumps and restores saves.