Gleerok

Gleerok is a boss in The Legend of Zelda: The Minish Cap. It serves as the guardian for the Fire Element, which is in the Cave of Flames. Its back is vulnerable to blows from the Cane of Pacci, which then renders it defenseless against the slashes of a sword.

Battle
Gleerok is floating in a pool of lava which it can sink into. You cannot reach its weak spot (the yellow jewel on its back) unless you hit its side with the Cane of Pacci, which makes Gleerok lose its shell for a time. When it loses its shell, it will fall onto it, momentarily knocking it out. While it is knocked out, the player must walk across its long neck to the exposed jewel and has to rapidly strike it with the sword. When the jewel disappears, the player must run off of Gleerok before it sinks into the lava or the player will take damage from falling into the lava. The lava pit will grow when gleerok is inside and rocks will fall from the ceiling. Afterwards, the lava pit shrinks again and Gleerok comes out with a new shell and jewel. Repeat until it is dead.

Gleerok's attacks are mainly shooting fire out of its mouth. Sometimes Gleerok shoots fire out of its mouth rapidly. If you are hit by the fire, Link will run around extremely fast trying to put out the blaze. If the fire misses Link, the floor will be set alight in tiny patches of fire. These fires can be easily put out by swiping them with your sword. Gleerok's fire attacks can't hit you if you are in corner.

Video
Video:Legend of Zelda : The Minish Cap - Boss 2 : Gleerok

Etymology
The name Gleerok is a portmanteau of "Gleeok", a recurring boss in the series, and "Rock", being its hard rock-like shell.