Audio
The music of Bloodlines was composed by Michiru Yamane, who garnered acclaim for her score for Castlevania: Symphony of the Night and subsequent handheld Castlevania adventures. Though she once admitted to have worked under extreme pressure and deadlines, this soundtrack met the standards of the previous entries and is highly regarded on its own for its gloomy atmosphere. The music for the second level, titled "The Sinking Old Sanctuary," was reused in later Castlevania games, Circle of the Moon, for the Game Boy Advance, and Legacy of Darkness, for the Nintendo 64.
The main themes for each of the first levels of the three NES Castlevania games (Vampire Killer, Bloody Tears, Beginning) are accessible in-game with a code and can be played in the sound test as well. Also, Nothing to Lose (the Castle Keep theme for the NES Castlevania) was played in the final part of the first stage. Theme of Simon (from Super Castlevania IV) plays after defeating Elizabeth and before the battle with Dracula.
Read more about this topic: Castlevania: Bloodlines