Guma

Guma (グマ) is the Japanese name for an otherwise unnamed enemy from The Adventure of Link.

These foes somewhat resemble giant, humanoid moles, and constantly hurl balls-and-chains in an upward arc, making approaching them somewhat difficult.

Trivia
Interestingly, this enemy's name translates as Gooma, which is the name given by the translation team to the boss known as Jaiantu (Giant) in Japanese.

The Guma's fighting style is also very similar to that of the Hammer Bros. from the Super Mario Bros. games.