Install Custom Firmware (CFW): Your PSP must be running CFW (like PRO-C or ME) to run modified ISO files.

This is circuitous, legal (you own the disc), and the only way to enjoy the full San Andreas story on a PSP screen—albeit with latency.

Grand Theft Auto: San Andreas is widely considered one of the greatest open-world games of all time. While Rockstar Games officially released the "Stories" series for the PlayStation Portable, San Andreas never received an official port. However, thanks to a dedicated modding community, there are ways to experience the spirit of CJ’s journey on your handheld.

Since Rockstar Games never released an official port, independent developers have created "homebrew" versions or mods. GTA San Andreas Stories (Fan Mod):

. It is impossible to play the full, original game natively on a standard PSP due to hardware and storage limitations.