Ropa

The Ropa is a mutated weed-like creature that inhabits the Dark World of Hyrule in A Link to the Past. They are much stronger than they look for their short size, dealing heavy damage with each blow they sustain to their prey and foes. They have a centralized light green body, and orange tendrils sprouting from their weed-like "head" that may be used in detecting prey or danger. They have no legs or organic formations that may be used like legs, so they stalk their victims by propelling their mass through the air by an unknown method. Due to their naturally armored carapace, they take more hits to kill than most normal enemies.

In Four Swords Adventures, they slosh about, as though they were filled with water, which seeing as they are a bag plant, they probably are.