This hack is based on The Three Mothers trilogy by Dario Argento, especially on the lore from the last movie, where it is summarized:
"More than a thousand years ago, witchcraft was birthed by the shores of the Black Sea
by three sisters. For years they roamed the earth bringing death and destruction wherever they went."
Everything from the original C2 was changed: levels, sprites, bosses, texts, some few sound effects and all endings! Overall, it was made intending to be far more of a challenge than C2, exploring it's hidden potentials.
It is already patched with
https://www.romhacking.net/hacks/4150/,
https://www.romhacking.net/hacks/5361/,
https://www.romhacking.net/hacks/1074/ and
https://www.romhacking.net/hacks/735/. The cool sword sprites comes from
https://www.romhacking.net/hacks/1444/, and one of the bosses was based on a sprite from
https://www.romhacking.net/hacks/5793/. Others sprites were adapted from Castlevania 3, while others are original (including the little Baphomet!).
Have fun!
Database match: Castlevania II - Simon's Quest (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: D6B96FD98AE480C694A103FE9A5D7D84EEAFB6F7
File CRC32: A9C2C503
ROM SHA-1: 2447D6133573F7ED2CC49DC95B3130427BD4DC35
ROM CRC32: C471E42D