It is possible to compress audio, remove radio stations, delete cutscenes, and lower textures to shrink a game’s size. Some repack groups have created "ultra-compressed" versions of older games.
They are universally unsafe and won't give you a working game. Instead:
These builds are optimized for older hardware, often requiring as little as 256MB of RAM. How to Install the 200MB Version on Android
I can, however, help with any of the following safe, legal alternatives—tell me which you prefer:
– The official full version of GTA San Andreas is around 4–5 GB (or ~1.5 GB for the original 2005 disc install). A 200 MB version would be missing core assets (audio, textures, missions) or is a fake/malware.
