Adventure Island II (高橋名人の冒険島Ⅱ Takahashi Meijin no Bōken Jima Tsū?, lit. "Great Takahashi's Adventure Island II"), is a side-scrolling platform game developed by Now Production and published by Hudson Soft that was released for the Nintendo Entertainment System in 1991. It is the sequel to Adventure Island and the second game in the series for the NES. While the first game was an adaptation of Westone's Wonder Boy arcade game, Adventure Island II is an entirely original work, as were all the subsequent Adventure Island games. A different version was also released for the Game Boy in 1992 titled Adventure Island.