was never officially released for the PlayStation Portable (PSP)
PPSSPP supports save states (instant save/load). Use them, but also use the in-game typewriter ribbons – save states sometimes desync the game clock. Resident Evil 4 Ppsspp Iso File Download
If you're having trouble finding a direct download link, you can try searching for "Resident Evil 4 PSP" on the PPSSPP website's built-in file repository. was never officially released for the PlayStation Portable