I've been playing around with some NES graphic mods and here is one of them. I changed the crest at the intro of Holy Diver to a picture of Dio. I also changed the character's palette and made it so he throws up some devil horns.
Here is a video of the full intro: holy_diver_dio_hack.zip 3.78MB 194 downloads
Here is the .ips patch and cart label. Enjoy! holy_diver_dio_patch.zip 20.1MB 179 downloads
Edited by emerson, Tue Aug 16, 2016 7:45 PM.