Ginga Ninkyouden, meaning "Galaxy's Chivalrous Tale," is an arcade game likely rooted in Japanese mythology and storytelling. Gameplay details are scarce without further information on each set version.  The differing sets (1 and 2) suggest potential updates, improvements or alterations.  The developer and publisher information isn't readily available for either set.

Ginga NinkyouDen (set 1)

Gigandes (earlier)