Takahashi Meijin no Bōken Jima IV (高橋名人の冒険島Ⅳ, "Master Takahashi's Adventure Island IV") is a 1995 platform video game released by Hudson Soft for the Family Computer. It is the fourth and final Adventure Island game released for the system. It bears the distinction of being the final official Family Computer game in Japan and was never officially released for the international market.
Unlike previous entries in the Adventure Island series, Bōken Jima IV plays less like a straight platformer and more of an action/adventure platformer, similar to the later Wonder Boy games.
Source: Wikipedia, "Takahashi Meijin no Bōken Jima IV," available under the CC-BY-SA License.