In PCSX2, go to the Memory Card settings. Click the icon with an arrow pointing into a memory card to import your downloaded file directly into a specific slot.
Mastering on the PCSX2 emulator usually requires hours of grinding to unlock all 62 characters, including elite fighters like Minato Namikaze (the Fourth Hokage) and the various forms of Sasuke Uchiha. Using a 100% complete save file bypasses this grind, granting immediate access to all characters, items, and maximum Ryo. Locating Your PCSX2 Save Directory Naruto Shippuden Ultimate Ninja 5 Save File Pcsx2
Once you have downloaded your Naruto_Shippuden_UN5.ps2 file, here is how to install it on PCSX2 (Nightly or 1.6/1.7 stable). In PCSX2, go to the Memory Card settings