There is a hidden audio track message warning the player to not play the disc in a audio CD player. The warning is a small skit between Richter and Maria. Though only in Japanese, it seems that Maria initially scares Richter and Maria then warns him to not put the disc into an audio CD player. Richter questions why she knows all this before seeing she's been reading off of a piece of paper. Richter then warns people to turn down their speakers as it may blow them out before the disc goes onto track 2. A similar audio track is present on the disc Castlevania: Symphony of the Night.