This hack replaces Julius Mode with KH Mode. In this mode, Julius, Yoko, and Alucard are replaced with Sora, Donald, and Neku. Voices are also changed.
https://www.romhacking.net/utilities/704/ is required to use this hack.
Instructions:
Use xdeltapatcher for put the patch in your rom (USA) (No Intro)
Thanks for Playing my Hack
Database match: Castlevania - Dawn of Sorrow (USA)
Database: No-Intro: DS (all) (v. 20210227-111036)
File/ROM SHA-1: 47530FF87E608F88105A314FDF36DC385F8DEC94
File/ROM CRC32: 135737F6