Most old links to file-sharing sites like Mega or MediaFire for this specific patch have expired.
Join EDF-specific Discord servers; fans often share "texture replacements" for emulators that act as a pseudo-translation. Summary of the EDF 2 Experience PSP (Japanese) PS Vita (Global) Language Japanese Only Full English Classes Ranger, Pale Wing Ranger, Pale Wing, Air Raider Graphics Original PSP Enhanced Textures Accessibility High (Emulation) Medium (Vita/PSTV) earth defense force 2 psp english patch link