Master Takahashi's Adventure Island IV (高橋名人の冒険島IV, "Takahashi Meijin no Bōken Jima IV") (Adventure Island IV for short) is a 1994 platform game released by Hudson Soft for the Family Computer; it was the final game released for the console in Japan.

Adventure Island IV also has a unique password system that the earlier games in the series did not have.

There is a large variety of weapons to choose from which are unlocked by the player throughout the game.

Many special items can be won in races and challenges, such as an angel/fairy item that allows the player character to re-spawn once, at the spot where they lost all hearts and even a compass that acts like a map showing the player with an arrow where to go.

The evil Eggplant Wizard kidnaps Master Higgins' dinosaur friends and later his girlfriend Tina, Master Higgins starts an adventure to save them and stop the evil eggplant once and for all.