This is a hack of Super Castlevania IV. It changes the HUD and font to be similar to the first Castlevania game. Simons sprite was also recolored to be a simpler color palette like the one in the first game. Weapon and item sprites were also ported and in some cases re-shaded. There is also a special edit to the final form of Dracula also.
This is a more in depth hack that changes more than what was changed in the
http://www.romhacking.net/hacks/2874/ hack. These exist separately as it's unsure if there will be a CV3 updated version. Also because some people may only want the HUD changed.
Super Castlevania IV - Cv 1 Font & Icons
By MathUser
v1.0
This is a hack which changes the font and HUD to resemble that of CV 1. It
changes the HUD font to be like Castlevania 1 and also the font. The Simon
sprite is recolored and CV1 style item icons have been added.
No-Intro Name: Super Castlevania IV (USA)
(No-Intro version 20130701-030720)
ROM/File SHA-1: 684C1DFAFF8E5999422C24D48054D96BB12DA2F4