-Doris' whip
-D is basically SOTN Alucard before SOTN Alucard
-Floor crumbling, leading to a water and skeleton filled catacomb
-Castle crumbling after head vampire's death
-D jumping into the castle via the drawbridge (Richter more acurately represents this scene as he's on horseback)
-D fights a giant Golem
-CV4's opening animation has a very similar music cue to VHD's opening (after Dracula flies away from his grave, and idk if I'm going too far with this lol)
-Huge variety of monsters in the Castle
-Lee's castle seems to have inspired Castlevania's look on certain box arts and game menus in the metroidvania era
-Premise: Action filled afair using an errie, western horror inspired asthetic, with a lone hero entering town to eliminate the threatening vampire and hordes of deadly, varried monsters
I'm sure a lot more. Castlevania really does feel like an unofficial VHD game series sometimes, ESPECIALLY in SOTN.