Holy Diver is a platforming action video game with some rad references to rock musicians. Developed by Irem in 1989, it was exclusive to the Japanese market, and never released outside of said-country.

Gameplay can be described as a combination of elements from Metroid and Castlevania (not to be confused with Metroidvania) with the protagonist being able to shoot balls of energy forward or above from his hand, and collecting powerups throughout the stages and beating bosses (similar to Metroid). The overall design and artstyle of the game can be compared to Castlevania.

You play as Randy, an infant son of the weakened 16th Crimson Emperor Ronnie 4th, who is on a quest to obliterate the evil Black Slayer, and restore power to the lineage of King Crimson.

This hack changes the game to use the Nintendo MMC-1 mapper instead of the unique Irem mapper. This is primarily useful for building reproduction cartridges or playing on an emulator that doesn't support the original mapper.

Version R1 is a complete re-hack which fixes bugs and improves performance over the old version. Most notable the special powers work now and there is less slowdown.

Holy Diver (Japan).nes - NOINTRO
CRC32: C4CF0E8E
MD5: 68B496A65571BCE9C8E7BE7667155C96
SHA-1: 47B1A5A395604B8DC0196C74D62BCBF00A941F5F
SHA-256: 4BFEFECBAFFA32903473C00217F0C57044A8194F1165C49C5F519258B3C9E89E