"Castlevania: The Dark Prelude" is an action-adventure game released by Konami for the Game Boy in 1997. As a title in the Castlevania series, it follows Sonia Belmont as she battles Count Dracula in medieval Europe. Players control Sonia through multiple stages, fighting a variety of enemies and powerful bosses before facing Dracula himself. With side-scrolling platforming action that combines jumping and combat, the game tests both player skill and strategy. The music and visuals stand out on the Game Boy, creating a rich gothic atmosphere.