A: PCSX2 does not have official online servers for Ultimate Ninja 3 . There is zero risk. Even if you use Parsec for remote play, a 100% save is allowed.
: Provides unencrypted save files specifically formatted for PCSX2 for use in "New Game+" categories. Naruto Ultimate Ninja 3 Save File Pcsx2
Let’s assume you have downloaded Naruto_Ultimate_Ninja_3_100%.ps2 . Here is how to inject it into your emulator. A: PCSX2 does not have official online servers