The opening theme, composed by Kaiketsu Zubat composer Kensuke Kyo, as usual with his style, features a very catchy vocal melody and sound effect riffs in the background.
In episode 13 when Rei announces she wants to get married and become a bride, the rest of the team passes or hides. Many years later, Rei (Sayoko Hagiwara) and Kosaku (Yuu Tokita) got married in real life.
Magnificent Bastard: Prince Megiddo is the son of Emperor Aton and his initial top enforcer. After Aton has General Zenobia chop Megiddo's tails off and banishes him to the Millennium Cave for his failures, Megiddo vows revenge against his father and Zenobia. Escaping the cave, Megiddo resurfaces as the Dark Knight to play both sides, discarding his earlier character flaws while becoming much more fearsome. When General Kar discovers the Retro Genes that can grant someone ten tails, Megiddo allies with the treacherous Zenobia by offering to help her gain ten tails first, setting up a machine to transfer the Retro Genes into her but sabotaging it to kill her instead. He then duels Aton and bests him before revealing his identity, shattering the Jashinka's tail-based caste system and leading a dying Aton to name Megiddo his successor. Megiddo then traps the Dynamen in the Millennium Cave and leads the Jashinka in a final conquest of Earth, going from outcast prince to Emperor in a spectacular way.
