Open the PPSSPP app. Navigate to the "Games" tab and locate the folder where you extracted the ISO. Click on the Resident Evil 4 icon to launch the game.
Use a file manager (like ZArchiver) to extract the downloaded file (if it is in Open PPSSPP, navigate to the folder where you extracted the Click on the game icon to play. 4. Alternative: The Better Option (GameCube/Dolphin) Fans often report that playing the GameCube version via Dolphin Emulator on Android works much better than modified PSP versions. Use "Dolphin MMJR" for better performance on Android. Set graphics to 1x or 2x resolution to avoid lag. 5. Best Settings for Smooth Gameplay Rendering Backend: OpenGL or Vulkan. Frame Skipping: Set to 1 or 2 if the game runs slowly. Resolution: 1x PSP for low-end phones; 2x PSP for high-end phones. Texture Filtering: Auto or Linear.