To use an English patch for the PSP version, you typically need a Japanese ISO of Musou Orochi 2 Special and a patching tool.

Despite the language barrier, the PSP version is highly sought after because it includes exclusive content not found in the original console releases:

: Many modern "updates" are actually texture packs designed for the PPSSPP emulator . These swap out Japanese text textures for English ones, providing a cleaner look on Android or PC. Key Features of the PSP Port (Musou Orochi 2 Special)