Based on this hack for the Japanese version of Harmony of Dissonance. Allows you to play as several characters: Julius, Simon, SimonX, JusteX, Megaman, Mario. You just enter any of those names on the file creation screen to play as them.
JULIUS - Julius Belmont from Castlevania Aria Of Sorrow. Menu, level up, sub-weapons and items functions are also available for Julius.
SIMON - Classic Simon Belmont. The same seen in the boss rush mode.
SIMONX - Enhanced Classic Simon. This one has a higher jump and can gain abilities.
JUSTEX - Devil Juste. A special version of Juste with super speed. A remade sword substitutes his original whip.