Samsara Naga 2

Sequel of a NES game, this not very nice J-RPG is a clone of Dragon Quest :

The story is about a child taken in a village when he is discovered alone and abandoned but carrying an egg. Years later, the child has grown up and the egg has given birth to ... a dragon. And this is not unusual in the ancient Greek inspired heroic-fantasy world where the adventure takes place: dragon riders are common and one of them has betrayed his family for an unknown reason. The hero goes in search of him ...