Rope

The Rope (ロープ, Rōpu) is a common enemy found in a variety of Zelda games, making its debut in the original The Legend of Zelda. It has appeared in every 2D Zelda game. These serpentine-like enemies seem docile under normal circumstances, but will charge at targets that they determine to be prey or a large threat. They are easily dispatched with most conventional weaponry. Unlike most enemies throughout the evolving Zelda series, the Rope has changed relatively little in attack pattern and appearance. In Japanese, the Rope from The Adventure of Link is know as Aaneru (アーネル).

The Minish Cap
Quote from The Minish Cap's Rope figurine: "Appears in various areas. They’ll come straight for you if they spot you. Just swing your sword when they charge at you."

Phantom Hourglass
Ropes make their 3D debut in Phantom Hourglass. Still, they attack almost exactly as they have in the past and haven't changed much physically either.