While the official Definitive Edition requires 19 GB on PC or 8 GB on mobile, modded PSP ISOs are often highly compressed, ranging from 500 MB to 2 GB .
Be cautious of "ISO" downloads claiming to be the full game. These are often scams or hoaxes gta sa definitive edition ppsspp
Technically, PPSSPP is designed to run .ISO or .CSO files originally made for the PSP hardware. Since Rockstar never ported San Andreas to the PSP, there is no official file for the emulator to run. Most "gameplay" videos found online showcasing San Andreas on PPSSPP are either April Fool's pranks or modified versions of GTA: Vice City Stories . 2. The Modding Community’s Alternative While the official Definitive Edition requires 19 GB