If you choose to unlock content manually instead of using a save file, here are the requirements for some of the most sought-after characters:

To install these save files, you must place the extracted folder into the correct directory for your device.

for both North American and European releases from contributors like KevinSan223 and biggk42 YourSaveGames : Provides a dedicated 100% Save Data package for both physical PSP consoles and the PPSSPP emulator. Game ISO (ROM) Internet Archive : A reliable source for the original North American (USA) ISO

Have a question about converting save files or running the ISO on a specific device? Drop a comment below (or ask in the PPSSPP subreddit r/EmulationOnPC).