There is a famous homebrew called Mortal Kombat: The Projekt by a developer named Nyub. This is what most "Mortal Kombat X PSP" videos on YouTube actually show.
What is it? It is a mod of Mortal Kombat: Unchained where creators replaced character models, stages, and UI to mimic MKX. It includes:
Pros: Closest you will get to "MKX on PSP". Cons: Glitchy, frame drops, requires custom firmware (CFW) on a real PSP, and is hard to find safe download links. mortal kombat x psp iso highly compressed better new
How to get it (Safely): Do not download random EXEs. Look for "MK Projekt 3.0" (latest stable build) on trusted homebrew forums like GBAtemp or Wololo.net. The file size is usually under 500MB – truly "highly compressed."
Even though a direct ISO doesn't exist, you have three fantastic ways to experience MKX or similar brutal fighting games on a handheld device. There is a famous homebrew called Mortal Kombat:
Most files labeled "MKX PSP" are actually modified versions of Mortal Kombat: Unchained (the PSP port of Mortal Kombat: Deception). Modders inject new character skins (like the variants for Scorpion or Sub-Zero seen in MKX) and menu screens to make it look like the newer game. While the gameplay is solid (it's still Deception underneath), it is not the MKX engine.
The Mortal Kombat franchise needs no introduction. With its brutal X-rays, gruesome Fatalities, and deep combo system, Mortal Kombat X (MKX) remains a fan favorite. However, many gamers searching for a portable version often type a very specific phrase into Google: "Mortal Kombat X PSP ISO highly compressed better new." Pros: Closest you will get to "MKX on PSP"
If you are reading this, you likely want to play the full MKX experience on your PlayStation Portable (PSP), smartphone, or PC using a PPSSPP emulator, but without taking up 10+ GB of storage.
Here is the hard truth you need to know before downloading anything, followed by the best possible solutions to play MKX-style fighting games on your PSP today.
The "new and better" mobile version of MKX exists officially. Warner Bros. released Mortal Kombat X for mobile (iOS and Android). While it is not the full console port (it uses a card-collecting and touch-control system), it features:
How to play: Go to Google Play Store or Apple App Store and search "Mortal Kombat". It is free. No compression needed.