YouTube videos claiming to offer "GTA 5 PPSSPP 100MB" for Android are typically fan-made mods of much older games (like GTA: San Andreas or Vice City) with skins applied to look like GTA V.
A basic 128GB USB 3.0 flash drive costs less than $15. For the price of a coffee, you can solve your storage problem without resorting to malware. gta v highly compressed 100mb
Tools like 7-Zip or WinRAR cannot achieve these ratios because game assets (encrypted binaries, high-resolution textures, and audio) are already optimized. GTA V Highly Compressed 100MB: Dream or Dangerous Trap
The most aggressive compression for GTA V (removing online, reducing audio quality, downscaling textures) might get the game down to . That is still 180 to 200 times larger than 100MB. Audio files are in MP3 or WMA format