Complex sentence: Each pack will contain four additional vehicles, eight additional courses, and three additional racer characters; some of which are based on other Nintendo franchises, including "The Legend of Zelda", "Animal Crossing", and "F-Zero".
Split into simpler sentences: Each pack will contain four additional vehicles, eight additional courses, and three additional racers. Some of these characters, vehicles, and courses will be based on other Nintendo franchises, including "The Legend of Zelda", "Animal Crossing", and "F-Zero".