Grankor

The Grankor is a creature in The Arena of Oorama. It is a gargantuan, crocodile-like monster that lives on the planet Mildor. It shoots giant fireballs and is a hard foe to defeat.

Strategy
An easy strategy is to use the Missile Flinger. The Tuuks will still be there, so be wary. The Missile Flinger will make short work of the Tuuks, and eventually, the Grankor too.