You will likely need an app like ZArchiver to extract the .7z or .zip files into the usable .iso format. 2. Installation Steps
If you find a file labeled "Mortal Kombat 9 PSP ISO," it is typically one of the following: Mortal Kombat: Unchained Mods : This was the official PSP port of MK: Deception mortal+kombat+9+psp+iso+download+exclusive