If you have located a legitimate fan-made ISO, follow these steps to get it running:
These ISOs are usually designed to run smoothly on the PPSSPP emulator for Android and PC, as well as original PSP hardware. Resident Evil 4 Psp Iso Highly Compressed Download 200
Most "Highly Compressed" files come in .7z or .RAR format. Use an app like ZArchiver (Android) or 7-Zip (PC) to extract the actual .ISO file. Move to Game Folder: If you have located a legitimate fan-made ISO,