If you have found a specific modded ISO, you typically follow these steps: Download the ISO and Data Files
File: FIFA_Street_4_EUR_PSP-ISO Size: 398 MB (ISO) / 264 MB (CSO) Firmware required: 6.60 PRO‑C or later Multiplayer: Ad‑hoc (2–4 players) Save data: 512 KB Languages: English, French, German, Italian, Spanish fifa street 4 psp iso upd
FIFA Street 4 was never officially released for the PlayStation Portable (PSP). The official FIFA Street series on the PSP only included FIFA Street 2 , while later titles like FIFA Street (2012) If you have found a specific modded ISO,
Matches ranged from 1v1 to 6v6 , including "Last Man Standing" and Futsal-style games. FIFA Street 4 PSP ISO Updates fifa street 4 psp iso upd
If you are seeing the extension specifically, this usually refers to a Game Update Patch rather than the game itself.