Battikaroa

Battikaroa is a giant Hollow that has some abilities as an Arrancar that has a similiar appearance to that of Runuganga.

Character Outline
Battikaroa is almost identical to Runuganga in every way except for the protruding spikes around his neck and more on his crown as well.

Plot
This plot contains spoilers

Fake Karakura Town arc
In the anime, he battles against Renji Abarai and Yasutora Sado while they are fighting hordes of Hollow below the fifth tower. At the beginning of the battle, Renji tries to attack the mid-section of Battikaroa. This does not work as his sword is almost swallowed by the hollow. Yasutora saves Renji's sword by helping to pull it out. Eventually, Yasutora tries to use La Muerte on the Hollow, which is able to cause a crack up that runs up to a location right below the mask, but the Hollow hits Yasutora off before it cracks the mask. Eventually, they figure out that Battikaroa has one weakness; his head. After numerous failed attempts at breaking the mask, Yasutora fires off a La Muerte that hits Battikaroa's bottom. While it's preoccupied with Sado, Renji fires a Baboon Bone Cannon blast at the Hollow's mask, defeating him.

At the end of the episode, during the preview to the next episode, Yasutora says what Battikaroa's name is. He was able to find out what the name was from the Hollow's original roar as he found that it was similar to dog language. Renji then asks humorously whether Battikaroa is part dog.

Abilities

 * Unhinged Jaw: Battikaroa has the ability to widen his jaw to such a size as to swallow the entire group of his opponents in one fell swoop
 * Cero: Battikaroa can also open up his mouth incredibly wide and fire a large standard red colored cero. It has quite an explosive knockback
 * Sand Regeneration: As long as his mask is not destroyed, Battikaroa can restore his body, very similarly to Runuganga
 * High physical strength: The punches of this Hollow are shown to have incredibly high knockback, being able to hit Yatsutora and Renji very long distances