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Nintendo Entertainment System · Improvement

Holy Diver MMC-1 Hack

By MottZilla

Holy Diver · All hacks & resources →

Holy Diver MMC-1 Hack gameplay screenshot.

About this project

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.

Original game requirements

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

Creator credits

MottZilla: Listed creator

RELEASE R1

Readme & instructions

423readme.txt

Holy Diver (J) [MMC1] R1 Patch By MottZilla Whats New: Version R1 Completely rehacked. Fixed Special Powers not working. Fixed horrible slowdowns.

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Holy Diver (J) [MMC1] R1 Patch
By MottZilla

Whats New:

Version R1
* Completely rehacked. 
* Fixed Special Powers not working.
* Fixed horrible slowdowns.
* Works fine.

This game never made it here and uses IREM's mapper 78 which is all generic logic
chips. For no particular reason other than maybe you'd want to build a repro I did
this hack. The game seems to run fine now on MMC1, proper mirroring, prg and
chr banking.

Boards configs that should work are SKROM, SLROM, and SL1ROM. Stats are:
128KB PRGROM
128KB CHRROM

Download 423readme.txt ↓

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