A: It is highly likely fake or a corrupted file. Since the game was never made for PSP, no legitimate .iso or .cso file exists.
: By placing the ISO file in the /PSP/GAME/ directory, you can play the full campaign on the go. How to Use the ISO
When users type , they are hoping to run I.G.I.-2 on their smartphone or computer via the PPSSPP emulator. However, there is a major technical truth you need to understand first.