Humungousaur (Heroes of Evolution)

Humungousaur is the Ultimatrix's DNA sample of a Vaxasaurian in Ben 10: Heroes of Evolution, and is used by Ben Tennyson. His appearance and behavior are slightly different from the series. He comes from the planet Terradino.

Transformation
When Ben activates the Ultimatrix, glowing green veins crawl up his arms and legs. His muscles begin to bulge, and his bones increase in size. He bends down, clutching his fists, as his skin gets harder and his spine begins to contract and scales grow along his back. His skin now has cracks and scales on it, and his face elongates as his teeth become sharp and his mouth enlarges. His eyebrows gain a jagged, rocky shape as they enlarge. His eyes become larger and go black, and they begin to glow green and appear reptile-like as he grows a jagged tail, and the veins on his feet enlarge them and harden his toenails into jagged, clumped dinosaur-like feet. He spreads out his arms in fists and roars as his chest bulges and glows with energy until he stands up straight and the transformation is complete.

Appearance
Humungousaur's appearance is very similar to that of the actual show, except it is far more realistic. His skin has a very rocky texture, but contains cracks and scales all over the darker areas. His chest contains scales along the side areas of his muscles, and they increase in occupation down to his knees. His head looks very similar to the Tyrannosaurus Rex from Jurassic Park, yet maintaining a humanoid shape. His back is covered in large scales, and there are very defined and jagged bumps along his spine. His tail is also very jagged, but is more scaly than the rest of his body to give it a more flexible appearance. His feet are very rocky and clumped, with large, cracked toenails and scales along his calf and the balls of his feet. His eyes glow green and have a very reptile-like appearance. The areas around his eyes and shoulders are darker than the rest of his body. His teeth are very spiked.

Behavior and Abilities
Humungousaur behaves more like a dinosaur than a human. He roars frequently, and rarely talks. In order to be realistic, Humungousaur's movement is slower than his other forms in order to give the character a sense of weight. The ground cracks when he runs, and his tail moves very lizard-like. Humungousaur's abilities remain the same. He has remarkable strength and is able to lift cars and trucks with ease. His strong body makes him resistant to strong force, though he can be frequently overpowered by extreme power and force. He also has the ability to expose spikes from the large scales in his body while he increases in size and strength. He gains large, spiked scales along his back, wrists, and tail. He can cause a significant amount of property damage even during movement. The ground cracks when he runs fast, and when he performs a powerful slam attack, he creates craters in the ground as debris flies everywhere. His personality is very aggressive, and he is often Ben's use of intimidation to his enemies.