The file usually contains the ISO, save data (for unlocked characters), and sometimes a texture pack.
No, the official Sparking! Zero is only on PlayStation 5, Xbox Series X/S, and PC. The mobile version is a fan-made mod based on Tenkaichi Tag Team .
This is the most critical part for the "Sparking Zero" look.
When you combine the two by loading the game file in the emulator, you can experience a "portable Sparking! ZERO " experience on your Android or iOS device.
For this, you will use your file manager app (like ZArchiver). Navigate to your Downloads folder, find the compressed .rar file, and select it. Tap "Extract" and choose a destination folder, such as Games or PSP [9†L41-L44][10†L35]. This will produce a .iso or .cso file, which is the actual game.