If you want God of War on Android via PPSSPP:
Since it is a PS3 title, Ascension requires much more powerful hardware than a mobile phone can currently provide through native emulation: If you want God of War on Android
: Use an app like ZArchiver to extract your downloaded game and mod files. a "TEXTURES" folder
The PSP does have two God of War games:
These usually come as a pack containing an ISO file, a "TEXTURES" folder, and a "SAVEDATA" folder. Move the Mod Files: If you want God of War on Android
You cannot play Ascension on PPSSPP because the file format doesn't exist. Instead, download the real PPSSPP emulator from the Play Store and enjoy the two excellent PSP titles that were built for mobile hardware.