A "highly compressed" file (e.g., 150 MB) must be extracted back to ~3.5 GB before playing. You cannot play the game while it is in the compressed archive. If your hard drive does not have 4 GB free after extraction, the file is useless to you.
: The standard emulator for PC (Windows/Linux) gameplay. mortal kombat shaolin monks ps2 iso highly compressed
, if you are on a data cap or using a retro handheld (like the Steam Deck or Anbernic). A 700 MB highly compressed CSO runs identically to the full 3.9 GB ISO on modern emulators because decompression happens on-the-fly using your CPU. A "highly compressed" file (e
If you are planning to play this on a PC using the PCSX2 emulator, the size of the ISO matters for performance. : The standard emulator for PC (Windows/Linux) gameplay
: Many highly compressed packs come with pre-configured SaveData that has all characters (like Scorpion and Sub-Zero) already unlocked.