What is "ppsspp"

PPSSPP (an acronym for "PlayStation Portable Simulator Suitable for Playing Portably") is a free and open-source PSP emulator for Windows, OS X, Linux, iOS, Android, BlackBerry 10 and Symbian with an increased focus on speed and portability. It was first released to the public on November 1, 2012, licensed under the GNU GPLv2 or later. The PPSSPP project was created by Henrik Rydgård, one of the co-founders of the Dolphin emulator.