Modern versions of Aethersx2 allow you to use "Folder Memory Cards" where each game's save data exists as an isolated folder matching the game's region ID.

This article will cover everything you need: why you need this save file, where to find a reliable one, a step-by-step installation guide, troubleshooting tips, and a breakdown of what the save file actually unlocks.

Naruto Shippuden: Ultimate Ninja 5 emulator, managing save data involves either manual progression or importing external save files to quickly unlock the game's extensive roster of 62 characters. Core Save Data Mechanics Unlocking Content