While there may not be an official Mortal Kombat 9 release for the PSP, the series has continued to evolve on other platforms. Recent titles, such as Mortal Kombat 11, have been released on PlayStation 4, Xbox One, and PC.
If you find a download labeled "Mortal Kombat 9 PSP ISO," it is typically one of the following: Fan-Made Mods mortal kombat 9 psp iso download high quality