- 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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