To use a downloaded save file on an original PSP running official or custom firmware, you need a USB cable or a Memory Stick Pro Duo card reader. Step 1: Download and Extract the Files
Download the ULJS00548 folder from a trusted community source (such as GameFAQs or dedicated Kamen Rider modding forums). Locate the Save Directory: Windows: Documents -> PPSSPP -> PSP -> SAVEDATA
Instant access to secret and late-game Riders, including Kamen Rider Wizard (All Styles), Eternal, Onyx, and alternative forms.