Castlevania Advance Collection is a classic collection of the Castlevania series, which includes the classic Castlevania: Circle of the Moon, Castlevania: Harmony of Dissonance, Castlevania: Aria of Sorrow , and Castlevania: Dracula X with new features, including rewind and quick save. The collection is also equipped with a convenient encyclopedia, a music player with all the soundtracks, and you can even change the ROM region to play all games in different versions.