The original game data is compressed into a smaller CSO or ISO format, stripping away redundant language files to save mobile storage space. Step-by-Step Installation Guide

By the time MKX launched on PS4, Xbox One, and PC, the PSP had already been succeeded by the PS Vita. Therefore, a direct port does not exist. So, what are those "Highly Compressed" files you see online?

Bringing newer MKX characters like D'Vorah, Ferra/Torr, or Cassie Cage into the PSP engine.

Higher quality skins that mimic the MKX aesthetic.

Download (Free or Gold edition) from the Google Play Store, iOS App Store, or official website.

Because the PSP cannot run the actual Mortal Kombat X engine, talented modders in the emulation community took (the official PSP port of Mortal Kombat: Deception ) and heavily modified its files. Key Features of the Mod

If you see a website offering a "new, better, highly compressed" Mortal Kombat X ISO for PSP, you are actually looking at one of two things: 1. Modded Versions of Mortal Kombat Unchained

Compare this experience with the official .

Experience the Next Generation of Fighting on Your Handheld: Mortal Kombat X PSP ISO Highly Compressed

Ideal for older smartphones or handheld emulation devices with limited internal storage.