You're looking for a PSP ISO patch for Inazuma Eleven. Here are some details:
Fan translations don't just translate text; they often localize special move names (Hissatsu) and menus to match the European/English dubs we grew up with. inazuma eleven psp iso patched
The Digital Pitch: Examining the Role of Patched ISOs in the Legacy of Inazuma Eleven for the PSP You're looking for a PSP ISO patch for Inazuma Eleven
Finding a "proper" English patched ISO for Inazuma Eleven on PSP is a bit of a rabbit hole because the series was primarily developed for Nintendo platforms (DS, 3DS, and Wii). : Once patched, the file can be loaded into an emulator
: Once patched, the file can be loaded into an emulator. For PSP specifically, you would use a converted version (if available) or stick to NDS emulators which are more common for the mainline series.