Holy Diver is an NES game based on the song and likely the overall aesthetic of Dio's album of the same name. The game's specific gameplay mechanics require further investigation; it likely involves action or adventure elements. The game is a Japanese release on the NES and further information regarding the developer and exact plot details would require further research into game releases from that time period.

Holy Diver (Japan)

Hokuto no Ken 3 - Shin Seiki Souzou Seiken Restuden (Japan)