The game was originally released for the PlayStation 3 and Xbox 360, with a later port for the PlayStation Vita. What you see online as "MK9 PSP ISO" is almost always a of an older PSP game. The Truth Behind "MK9 PSP ISO" Downloads
Any files advertised as a "Mortal Kombat 9 PSP ISO" are typically of Mortal Kombat: Unchained (the actual official PSP title based on MK: Deception ). These mods replace textures and character models to mimic the look of MK9 . Official Alternatives for Portable Play The game was originally released for the PlayStation
If you've decided you want a real MK game on PSP: These mods replace textures and character models to
was never officially released for the PlayStation Portable (PSP) . Official Mortal Kombat Options for PSP
Websites claiming to offer a "highly compressed verified" ISO for MK9 on PSP are likely providing either a different game or potentially harmful files. Official Mortal Kombat Options for PSP