The vanilla game requires grinding through the "Adventure Mode" to unlock costumes like "The Last" versions of Sakura, Hinata, and Sai. A "BETTER" PKG usually includes a or a modified eboot.bin that bypasses the Ryo currency system, giving you all characters (including Sound Four, Han, and Utakata) from the title screen.
To install the game and its updates or DLCs, follow these general steps for a jailbroken PS4: Prepare the USB Drive : Use a high-capacity USB drive formatted to Transfer Files : Place your extracted files in the root directory of the USB drive. Do Naruto Storm 4 Ps4 Pkg BETTER