Holy Diver (Irem - NES - 1989)
Heavy metal fans will get a good laugh at the story:
“Resurrected-The Legend of the Holy Magic King’s Justice
It is the 666th year of the world of magic. The Black Slayer, emperor of the darkness, has extended the world of darkness and weakened the power of King Crimson whose wisdom has guided the world of magic for generations.
The 16th King Crimson Ronnie IV entrusted his two infant sons, Randy and Zakk, to his faithful servant Ozzy. The three escaped the forces from another dimension in the hope to bring light back into the world.
The next 17 years were difficult but Randy, Zakk, and Ozzy devoted themselves to the cause of Holy Magic Justice. The Black Slayer had further extended his empire over the countryside and the inter-dimensional forces were even more powerful. Randy needed to find the emblem seals belonging to the King Crimson family to battle the demons. He set out alone to carry out the will of his surrogate father Ozzy who had passed away. Thus begins the legend of the Holy Magic King’s Justice.”
(I take no credit for the story translation.)
With a story as magnificent as that, it’s even more of a shame that Holy Diver is ruined by a difficulty level so brutally unfair it makes Contra look like Kirby.