General Information
Species Arburian Pelarota
Home World Arburia
Body Pillbug
Powers and Abilities
Abilities Sphere Transformation
Energy Deflection
Enhanced Strength
Enhanced Durability
Enhanced Balance
Enhanced Agility
Enhanced Jumping
First Appearance Welcome to the Mad World

Fastball is the Yellow's Omnitrix's DNA sample of an Arburian Pelarota from the planet Arburia in Build-a-Ben.


Fastball looks the exact same as Cannonbolt in the Omniverse series, however the eyes are yellow.

Transformation Sequence

The transformation screen looks the same from Omniverse except the background is yellow. The Omnitrix seems to vanish from Yellow's wrist and his arm starts to puff out. Soon, all of Yellow begins to puff and swell into a giant ball with hands and legs. Yellow's hands grow claws and his shoulders and back grow armor. Yellow's chest develops a black line as well as the Omnitrix reappearing. Then, Yellow rolls around in a ball, and reveals himself as Fastball.

Powers and Abilities

Fastball has the same powers as any Arburian Pelarota. He can curl into a sphere and roll around, deflect energy, has enhanced agility, strength, durability, balance and jumping and finally has sharp claws.


Like other Arburian Pelarotas, Fastball subjected to the physical laws of reflection and conservation of momentum, meaning that they can have difficulty stopping or controlling direction at high speeds.


The only history of Fastball so far is that it defeated Yellow's version of Animo in the beginning of the series. Apparently, Fastball was one of the original 10 in Yellow's lock.




Community content is available under CC-BY-SA unless otherwise noted.