This was not the first Castlevania game to let players play as Alucard, he was previously available as a spiritual helper in Castlevania III: Dracula's Curse.

Reissued for the Sega Saturn with a new area that wasn't in the Playstation version. This version has never been released in America.

First Castlevania game to separate from the "stage-by-stage" gameplay of earlier games, and create a more Metroid-esque play experience, which also featured RPG elements (leveling up, equipping new stuff, item usage, etc.)

Available as a download on the Playstation 3 and XBOX 360 download services.

Reissued in 2007 as an unlockable game in the PSP Dracula X Chronicles.

First 32-bit entry in the Castlevania series.

The game's equipment/item use system worked differently than later "Metroidvania" style games. Items had to be equipped to be used, and a piece of equipment could be put in either hand (you could have a shield in one hand a sword in the other, two swords, two shields, etc.) This was not repeated in later installments.

On the arch of the corridors that connect the stages, a circle can be seen with the letters "CD" engraved. Fittingly, this could be a reference to the fact that this game was released on CD. It is also an allusion for the antagonist of the series, Count Dracula.

Adrian Tepes's last name "Tepes" (pron. "tse-pesh") is Romanian for "impaler", a name attached to Count Vlad Dracul, aka Vlad Tepes (Vlad the Impaler), who was Bram Stoker's inspiration for Count Dracula.

Near the beginning of the game, the Grim Reaper takes the entire equipment from Alucard away. However, by triggering a certain glitch, it is possible to avoid that encounter. To trigger the glitch, one must perform a backdash the very moment Alucard enters the room where the Grim Reaper appears. As the cutscene usually plays immediately, it has to be done precisely (most ideally when the screen turns black for a split second while entering the room). If done correctly, the player can safely walk over the bridge and keep all the items.