• This monster's appearance is based on a Den-den daiko (でんでん太鼓) toy, however, written with the Kanji for "lightning" and "archduke", forming the same pronunciation.
    • Its name is a portmanteau of "Den-Den Daiko" (でんでん太鼓 Den-Den Daiko) and "King" (王 Ō).
  • This monster appears in the artwork of "Speedrift".

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