Bawabawa

, is a giant, eel-like Hollow whose mask consists of a simple plate on his head with a pair of horns. He acts as both a pet and transportation for Pesche, Dondochakka, and Nel Tu. Bawabawa tends to get upset for not being included in the group's super sentai-styled introduction sequences. He displays his displeasure with this by breaking down and crying.

Character Outline
Initially, Pesche and Dondochakka say that Bawabawa can't survive without sand, thus explaining why he doesn't follow the group into Las Noches. During a battle with Szayel Aporro Granz, however, Dondochakka reveals the ability to spit Bawabawa from his mouth. Despite his fearsome appearance, Bawabawa is actually rather emotional and not evil, but will fight if necessary.

Bawabawa appears on one of Gin Ichimaru's "Arrancar Research Time" segments. Gin comments on his size and Bawabawa humorously tries to swallow him, forcing the latter to use Shinsō to push him off.

Hueco Mundo arc
Bawabawa is first seen playing eternal tag with Nel Tu, Pesche and Dondochakka, with the 3 Hollows chasing Nel. Unfortunately, Yasutora Sado, Uryū Ishida and Ichigo Kurosaki believe that Bawabawa was trying to kill Nel, and Chad assaulted Bawabawa. After the misunderstanding was cleared up, the 7 have a 'meeting' with the giant Hollow Runuganga. When Ichigo's Getsuga Tenshō fails to destroy Runuganga, Nel informs Ichigo that Runuganga's weakness was water. However, unable to find any water, the group are still unable to hurt Runuganga. However, the tables are turned when Rukia Kuchiki, who had come with Renji Abarai, destroys Runuganga with her ice-type Shikai.

In the anime only, Runuganga appears before them again and sends the group down to the Forest of Menos. Bawabawa aids the team by following Rukia's scent and eventually she finds them instead, along with Ashido Kanō, a shinigami who had been fighting in the forest for years. They manage to get back to the surface and enter Las Noches, but Ashido stays behind to fight off the Menos so the gang can escape.

Later, Bawabawa is seen in the battle between Szayel Aporro Granz, when Dondochakka releases him from his mouth to assist him and Pesche in battle. Pesche then explains that Bawabawa is actually one of many spiritual combat insects that dwell within Dondochakka. After their Cero Sincretico technique, Bawabawa is not seen, presumably back inside Dondochakka's body.

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