You have the ISO. Now, download the from the official site (ppsspp.org) for Windows, Android, or iOS.
There is no official release of Street Fighter X Tekken for the PlayStation Portable (PSP) or . While the game was released for PlayStation Vita , it never received a native PSP port. street fighter x tekken iso ppsspp
: Access to 55 characters, including Vita-exclusive fighters. Cross-Play : The ability to play against PS3 users online. You have the ISO