—was never officially released for the PlayStation Portable (PSP). It was a high-fidelity console game for PS3 and Xbox 360, which means there is no official ISO file for it that runs on the PPSSPP emulator [1, 2].
Creators use custom "texture packs" and character skins to make the game visually resemble Mortal Kombat 9, including updated character models for Scorpion, Sub-Zero, and others.
: This is the base game required for the emulator to run.