was never officially released for the PlayStation Portable (PSP)
If downloading a PSP ISO file isn't feasible, consider:
to extract the downloaded RAR or ZIP file into a usable ISO format. How to Install & Play Extract the ISO: Locate your downloaded file in and extract it to a dedicated folder, such as /PSP/GAME/ Open PPSSPP:
Configure the on-screen controls or connect a physical controller for a better gaming experience.