The Japanese version saves to the game cartridge, but in the international version you need to get a Controller Pak to save the game.

Originally, there were going to be four main characters: Schneider Belmont, Carrie Fernandez, Cornell and Corler. Eventually, Schneider Belmont was renamed Reinhardt Schneider. Corler, a shotgun and chainsaw wielding monster, was dropped from the game, and Cornell was moved to Castlevania: Legacy of Darkness.