Bigocto

Bigocto is a mini-boss encountered during the "Inside Jabu-Jabu's Belly" dungeon in OoT. This enemy is based on the Octoroks, although a lot larger. Bigocto abducts the Zora princess-Ruto, before chasing Link around a circular room (with a spiked perimeter); attempting to ram him. Link must pay attention to the changing directions of Bigocto, and use the boomerang to stun him via. the weak spot on the boss's back. Once stunned (and coloured blue), Bigocto can then be attacked with the sword. The process is repeated enough times to kill Bigocto.