The Adventure of Link (Zelda II) is the second game in the well-known and loved Zelda franchise. It was released in North America roughly 2 years after the original and traded in the top-down style for a side scrolling more action-oriented feel, combing new attacks and magic. It gets a bum rap by many I feel, and was actually one of my favorite games on the NES (Nintendo Entertainment System) despite it’s difficulty for me at a young age.
More info from Wikipedia: “Zelda II: The Adventure of Link (リンクの冒険 Rinku no Bōken?, “Adventure of Link”) is an action role-playing video game with platforming elements. The Adventure of Link bears little resemblance to the first game in the series or later games in the series. The Adventure of Link features side-scrolling areas within a larger top-down world map rather than the exclusively top-down perspective of the previous title. It is more an action-RPG, much like Faxanadu (also on the FC/NES). The side-scrolling gameplay and experience system is also very similar to many games in the popular Castlevania series, especially Castlevania II: Simon’s Quest also released for the FDS in 1987.”