When users search for a "Storm 5" PPSSPP file, they are usually finding fan-made texture packs and character mods that bring "next-generation" content to the handheld emulator:
For the best chance of getting a "Storm 5" mod working:
: An official port of the first Storm game is available on the Apple App Store and Google Play Store.
The downloads you see online for "Storm 5" or "Storm 4" on PPSSPP are typically of older PSP games like Naruto Shippuden: Ultimate Ninja Impact or Ultimate Ninja Heroes 3. Official Naruto Games for PSP/PPSSPP
The official Storm series technically ended with Ultimate Ninja Storm 4 , though the 2023 release of Ultimate Ninja Storm Connections is often considered the spiritual successor.