Arburian Pelarota/Vulpinic Tortugan

'The Omnitrix Is Mine!' Vilgax(A Chimera Sui Generis)
While most Pelarotas simply prefer to roll up and play possum, they can also be extremely aggressive, releasing a powerful chemical blast. Pelarotas are able to transform into devastating projectiles strong enough to penetrate solid steel. The Arburian Pelarota is a generally peaceful creature that is now considered extinct. Normally slow, clumsy, and awkward, the Pelarota's soft flesh is covered by several exo-plates that fit together to form a nearly invulnerable shell. When at play (or confronted by aggression), the Pelarota can roll up into a giant ball, and with their tremendous mass, ricochet at incredibly high speeds. They live on the planet Arburia. Their planet was destroyed by a giant tick and for some unknown reason the species started poping up Vulpin and the species is now called Vulpinic Tortugan.