drop various items and equipment, and provide experience points; after reaching a predetermined number of experience points, Nathan will level up, and his statistics will improve. The defeat of boss enemies allows the player to acquire new abilities to progress further in the game. Unique to Circle of the Moon is the Dual Set-up System (DSS), based on magic cards found throughout the game that belong to one of two categories: Action and Attribute. Each of the ten Action card takes its name from one of the gods and goddesses from Roman mythology, and determines the type of magic being performed, while the ten Attribute cards take their names from creatures primarily drawn from Greek and Roman mythology, and add an effect to the magic. To produce a magical effect, the player combines one card from each of the two categories, for a total of one hundred different combinations. In "The Battle Arena"—an optional area of the castle which consists of seventeen rooms filled with stronger versions of monsters found elsewhere in the castle—Nathan's supply of mind points is drained, causing the DSS cards to become temporarily unusable. Castlevania: Circle of the Moon has four alternative modes of gameplay, which must be completed in order as completion of one mode unlocks the code for the next. Once the player has finished Circle of the Moon for the first time, they receive a code that can be entered as their name when starting a new game; this code will start the game in Magician Mode, in which Nathan has decreased strength and defense, but increased intelligence and begins with all twenty DSS cards. Fighter Mode does not permit the use of DSS cards, but increases his strength and endurance. Shooter Mode allows a higher maximum of hearts he can carry, but gives a penalty to strength, defense, and hit points. Nathan can throw homing daggers if he collects two daggers in a row in this mode. Thief Mode reduces Nathan's strength and defense, but increases his luck greatly. Plot Taking place in 1830, Circle of the Moon is set in one of the fictional universes of the Castlevania series. The premise of the original series is the eternal conflict between the vampire hunters of the Belmont clan and the immortal vampire Dracula. Circle of the Moons protagonist, however, is Nathan Graves, whose parents died a decade ago to banish Dracula. Morris