Complex sentence: Each of Haunted Castles six levels conclude with a boss fight: these bosses are generally taken from horror literature or legend, and include Medusa, Frankenstein's Monster, and of course, Dracula.
Split into simpler sentences: Each of Haunted Castles six levels conclude with a boss fight. These bosses are generally taken from horror literature or legend, and include Medusa, Frankenstein's Monster, and of course, Dracula.