Astyanax © 1990 Jaleco Company, Limited.
North American release. Game developed in Japan. See the original Japanese release entry for more information about the game itself; "The Lord of King [Model JF-25]
Description from the USA back cover:
Return to the age of myths and magic, demons and dragons!
Sure, you've travelled some strange terrain in your video game journeys, but wait till you see where Astyanax takes you!
In your pursuit of the evil wizard Blackhorn and his captive, Princess Rosebud of Remlia, you'll encounter terrors that would frighten the Gods themselves. The dreaded Thorndog, with his heart of stone and face of bone. Monstrous Caeser, of the Gremlin face and chicken feet. The endless Maze of Castle Terenea. Plus, winged dragons and metamorphosing monsters, sorcerers' spells and wicked wizardry, in a land that reaches far into the past and the future.
It's the stuff myths are made of, a fantastic flight stretching eons beyond any game you've ever experienced. If you'd go to the ends of the Earth for the ultimate adventure, Astyanax is your game!