Zelda II: The Adventure of Link is the second main installment of The Legend of Zelda series and the direct sequel to The Legend of Zelda. It was originally released on the Famicom Disk System in Japan and eventually on the Nintendo Entertainment System in North America and Europe. While retaining many of the features of its predecessor, The Adventure of Link altered certain elements of gameplay, most notably affecting movement and combat. Traveling across a world map would lead to enemy encounters which took place on a side-scrolling field of play rather than the top down perspective for which the series became known.