General Information
Species Warasaurian
Home World Warasauria
DNA source Unknown
Body Humanoid Dinosaur
Alternate Counterparts Dino Droid (Rebel Brandon)
Powers and Abilities
Abilities Enhanced Strength
Enhanced Durability
Equipment Shoulder Canons
First Appearance A Hero is Born
Ro-Warasaur is an alien transformation used in the show, Brandon 10.


In The Original Series, Ro-Warasaur is a big, green dinosaur-like alien with two grey canons (with red interiors) on his shoulders. He has a big, grey shell on his back, five green chest plates on his chest, black finger-less gloves, a black/dark blue helmet with spikes and a tail. The Omnitrix symbol is on his chest.

In Ultimate Hero, Ro-Warasaur remains as a big, green humanoid dinosaur like in The Original Series. He now has a different shade of a green and four chest plates. The cannons on his shoulder now have shinier grey coloring and seem mounted onto his shoulder like pads; the inside of the cannons are still red. He has metallic hands rather than finger-less gloves. His feet now have more toes than two. He still has the two horns on the side of his face and on top of his helmet but the head horns are smaller and more towards the sides. His tail is also green now. The Ultimatrix symbol is on his chest.

Powers and Abilities

Ro-Warasaur has the power to shoot explosive cannonballs from miniature cannons upon his shoulders. He also has super strength, durability and enhanced size. As seen in The Ultimate Enemy, Ro-Warasaur has the ability to fire lasers from his hands.


Due to his scale, Ro-Warasaur's weight slows him down and could cause him to sink when standing in a sinkable environment.


Original Series

Ultimate Hero



Video Games

Online Games



  • During The Original Series, Brandon uses Ro-Warsaur as his main strength alien.
  • In Robotic Past, The Creator created a robotic duplicate of Ro-Warasaur
  • Ro-Warsaur was one of the infected aliens in Sick Day.
  • In the short, Too Big, Ro-Warasaur is revealed to have a size-changing ability but it is unknown if it is an official power.
  • He is the third alien to make a reappearance from The Original Series; the first being Rocks and the second being Snow Bear.
    • Ro-Warasaur was also the first alien from The Original Series to reappear in Ultimate Hero.


Brandon 10
Main Characters in The Original Series
Brandon 10 | Coco
Supporting Characters in The Original Series
Kayla | Sophia
Villains in The Original Series
The Conqueror | The Creator | The Mutater | The Sorceress
Aliens in The Original Series
Freezefire | Ro-Warasaur | Wildpup | Big Boo | Slime Shot | Gasadactyl | Angler Fish | Snow Bear | Virus | Aqualad
Additional Aliens in The Original Series
Twisty | Beastie | Rocks
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