The files labeled as "Storm 4" for PPSSPP are almost always "total conversion mods." Developers use Ultimate Ninja Impact (which is about 1.2GB original size) as a base and apply custom textures and save data to make it look like Storm 4 .
To run these modded versions on your Android or iOS device, follow these steps: The files labeled as "Storm 4" for PPSSPP
Move the "TEXTURES" folder to your PSP/TEXTURES directory. This is what changes the graphics to the "Storm 4" style. The files labeled as "Storm 4" for PPSSPP