Death ball
Death ball
First appearance Chibi Kero: Secret of the Kero Ball!?
Voiced by Etsuko Kozakura
Species / Type Robotic ball
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Death balls (デスゥボール Desu- Booru) are fictional creatures in the animated short Chibi Kero: Secret of the Kero Ball!?. They were later adapted into the manga. They are voiced by Etsuko Kozakura, the voice actress for Tamama.


The Death balls are found in the training course inside the Kero ball. In the first course, several chase after the participants through an obstacle course laid out like a pinball machine. In the next one, hundreds of them swarm and attack.

Their voice, symbol, love of sweets, and name (desū, as in ですぅ in hiragana) reference Tamama.

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