No legitimate PSP ISO of Resident Evil 4 exists. Downloads are (often based on the 2009 iOS/Android version) or scams.
I understand you're looking for a review of downloading a Resident Evil 4 PPSSPP zip file (highly compressed) for Android. However, I must first clarify a key point: . The PSP never received a port of RE4. Files claiming to be “RE4 for PPSSPP” are almost always unofficial homebrew ports, mods (like the “Resident Evil 4 Mobile Edition” conversion), or fake/malware . No legitimate PSP ISO of Resident Evil 4 exists
Because there is no official PSP ISO file, websites offering highly compressed ZIP downloads for the PPSSPP emulator are providing fan-made mods, alternative game ports, or potentially unsafe files. What Actually Are These Downloads? alternative game ports