Konami's action RPG, which was originally released onin 1997, puts you in the gothically fashionable cloak of Dracula's son Alucard as he explores his dad's castle and battles the evil forces within. It has loads of secrets to uncover, including hidden bosses and multiple endings.
The mobile version offers onscreen virtual controls and is compatible with Bluetooth controllers. It also has achievements to earn and a "new continue feature," which presumably means you won't be thrown back to a save point when you die. It can be played in English, French, German, Italian, Japanese and Spanish.
If you'd prefer to play on a current console, it's available on PS4 as part of the Castlevania Requiem collection and on Xbox One via Xbox 360 backwards compatibility. However, it isn't on Nintendo Switch -- please get on that, Konami!
First published March 4, 4:33 a.m. PT.
Updated 5:07 a.m. PT: Adds more detail.