If you own the original PSP UMD discs for these games, you can dump your own legal ISO files to play on Android. Here is how to configure them:
If a website offers "GTA San Andreas PPSSPP download" with a file size of 300 MB – it is 100% fake. San Andreas PC version is 4.7 GB; PSP games max at 1.8 GB. Gta San Andreas Apk Download For Android Ppsspp
Always download from trusted and reputable sources. The world of ROM and ISO files is rife with sites hosting malware, adware, or corrupted files. Use common sense. If a website looks suspicious, has intrusive pop-ups, or offers a file that seems too small, do not download it. A legitimate mod file is expected to be several gigabytes, not a few megabytes. If you own the original PSP UMD discs
Rockstar Games never released a PSP version of San Andreas. They released GTA Liberty City Stories and GTA Vice City Stories on PSP, but San Andreas was too big for the PSP hardware at the time. Always download from trusted and reputable sources