: The only official CoD game for PSP. Fans frequently swap textures, sounds, and weapon skins to make it look like Modern Warfare 2 Fan-made Mods

For the actual Modern Warfare 2 experience, you should use supported platforms:

“Highly compressed” (e.g., 100 MB → full game) is usually a red flag. PSP ISOs naturally range from 300 MB to 1.7 GB. Extreme compression often removes cutscenes, audio, or breaks gameplay.