Naturally, gamers wanted to play Mojang's block-building masterpiece on Sony's portable powerhouse. Because an official port never materialized, the community took matters into their own hands. This birthed the legendary era of the —a collection of ambitious, fan-made homebrew projects that attempted the impossible. Why There is No Official Minecraft PSP Release

was never officially released for the PlayStation Portable, the "Minecraft PSP ISO" you're looking for refers to impressive fan-made homebrew projects

Basic survival elements, health bars, inventory management, and functional tools.

Move the downloaded Minecraft_PSP.iso file into that ISO folder.

CSM pushed the PSP to its absolute limit. Walking through a dense forest would drop the framerate to single digits, but the fact that it worked at all was a testament to the skill of the homebrew scene.

Yes, these ISO files can be run on PPSSPP on Android, PC, or iOS for better performance.