Bigocto

Bigocto is a giant Octorok which is the mini-boss of the dungeon Inside Jabu-Jabu's Belly in The Legend of Zelda: Ocarina of Time. To defeat it, Link runs around the spinning circular platform (avoiding the spikes) in the direction it is moving. When he gets within good proximity of the Giant Octorok, he throws the newly aquired Fairy Boomerang at the green orb protruding out of the beasts' body, severing it and eventually killing the monster.