If the file is in a .7z or .rar format, use an app like ZArchiver to extract the actual game file.
If you own the original UMD, here is how you can create your own highly compressed top-tier ISO: crash mind over mutant psp iso highly compressed top
Open the PPSSPP emulator. For Mind Over Mutant , it is recommended to set the Backend to OpenGL or Vulkan and enable "Skip Buffer Effects" if you experience lag on older devices. If the file is in a
Usually converted to .CSO (Compressed ISO) or .ZSO to save space while remaining playable on emulators like PPSSPP . Top Sources for Highly Compressed PSP ISOs crash mind over mutant psp iso highly compressed top