To be direct: . It originally launched in 2012 for the PlayStation 3, Xbox 360, Wii U, and PC. Because there is no official PSP version, there is no legitimate .ISO or .CSO file of the full game that the PPSSPP emulator can run. So, What Are These "Downloads" People Talk About?
Open PPSSPP, go to the "Games" tab, and navigate to the folder where you saved the extracted file. Call Of Duty Black Ops 2 Ppsspp File Download