Transformers Animated Voyager Wave 03: Grimlock is equipped with a magma-like sword. Influenced by his Gen 1 appearance, this version of Grimlock is finally granted appropriately imposing dimensions. Grimlock�s barrel-centered tyrannosaurus mode is mounted atop stout haunches and is joined with a sturdy, drastically tapered tail. Grimlock�s robot mode is broad-shouldered, and appears to be well-articulated. Both the dino and robot modes feature head sculpts with jagged block-like overbites. Grimlock and his fellow Dinobots originated as robotic dinosaurs constructed by Isaac Sumdac and Megatron; they were subsequently granted sparks by the All Spark power contained within Sari Sudmac�s key. Grimlock established himself as Dinobot leader. Though the Dinobots were intended to be pawns of Megatron, they in fact rebelled and ultimately were corralled and trapped by Bulkhead before being relocated to Dinobot Island.