The thing that I think really throws people for a loop with CV4 is the intro. I know that at least in the US version of the game, it states that "once again Simon Belmont sets out with only his whip and his courage." after saying that "Dracula and the Belmonts haven't fought each other for 100 years". If the part about Simon Belmont once again setting out, or that the previous battle was 100 years earlier was removed, there would be no problem because then the game would either be a remake of the original CV or a sequel to Simon's Quest.