Sequels during the 8-bit era were an interesting thing really. Looking back it almost seems like developers either didn't know the big risks they were taking by making incredibly different sequels, or they didn't know how to make sequels. Role playing games were super popular in Japan in the mid 80's and rpg elements started to appear in lots of games. This is true of the sequel to the popular Konami title Castlevania, titled Simon's Quest which was released in 1987 on the Famicom Disc System. One year later the game hit North America and it has since found it's place as an interesting addition to the Castlevania series.
