The Japan Rail Pass is the most convenient way to travel throughout the whole country of Japan. However. there are other types of passes that are limited to regional use.
If your plans are to travel within a specific area of Japan. such as "only around Osaka area" or "just in Kyushu area". the "Regional Japan Rail Pass" might suit your needs better. Similar to the nationwide Japan Rail Pass. each Regional Pass allows the same unlimited travel benefits on designated Japan Rail trains, buses. and ferries, but limited within that region.