PPSSPP is a portable game console emulator for PSP (PlayStation Portable), which allows you to play your PSP games on your Android device.
It is developed by the PPSSPP development team, which is maintained by users around the world.
The emulator is free, open-source, and has support for over 90% of PSP games.
In addition to the Android version provided here, the emulator is also available for a variety of operating systems, such as Mac OS X, Linux, Windows, Blackberry, among others.