In the end, PPSSPP is a very good PlayStation Portable emulator which has a ton of features and options for optimal gaming. Quick access to other options are available from the 'Options' menu in the top menu bar. PPSSPP features several different settings which can be configured: Audio, Graphics, System, Controls and Developer are all self-explanatory. The support for PSP ROM files isn't necessarily universal and it can currently load around 800 different games while a smaller number still remain unplayable. Also inside the store are homebrew games and applications which can be downloaded and emulated on a Windows system. PPSSPP also provides access to a store which includes free PSP game demos which it can download and then emulate.
It can open PSP ISO files without much issue. The application features a modern and straightforward interface which provides you access to a file browser to search for games on your system or connected mass storage media. It is available for several platforms including Android which can be found in the Play Store. PPSSPP (PlayStation Portable Simulator Suitable for Playing Portability) is a PSP emulator which can open game files.
Fast, portable and but limited PSP Playstation Portable emulator.