You cannot natively download God Hand and play it via PPSSPP on Android.
Downloading and playing God Hand on an Android device is a relatively straightforward technical process, though it requires specific steps. First, the user must download the PPSSPP app from the Google Play Store (the Gold version supports the developers, while the free version is ad-supported). Second, the user must locate the game file, typically in the form of an ISO or CSO file. God Hand Download For Android Ppsspp