[a] Toei proactively scripted a portion of the season's material as a delay resulted in the manga lagging behind the anime, producing a truncated plotline that is roughly parallel to volumes 23 through 29.

Only the first four episodes of the season were edited and dubbed in English, and they premiered on YTV's programming block Bionix in Canada from November 15, 2008, to December 6, 2008.

He coerces these Mamodo into his allegiance by instilling a curse on their human partners, including Li-en, that will kill them if Faudo is not reanimated in time.

However, a miracle entity within Zatch arises, allowing him to overcome Zeno and return him to the Mamodo world, but not without losing control of Faudo.

Zatch and Kiyo take the matter into their own hands and use this newfound power to destroy Faudo just off the shores of Japan, saving the world from doom.

In the season epilogue, Zatch and Brago, now the only Mamodo left on Earth, are about to battle each other for the crown of their world, but the series ends before a true winner is determined.

[7] Actress Ikue Ōtani, the Japanese voice of Zatch, left production for maternity leave after 140 episodes and was replaced with Konami Yoshida.

Thus, the finale’s post-credits closing scene with Zatch and Brago urges viewers to finish reading the manga to find out who wins the tournament.

[15] Notably in his version, Rioh murders Kiyo,[16][17] who then comes back to life with a mysterious psychic ability that would become a crucial component for the manga.

[21] In Japan, Shogakukan, the publisher of Zatch Bell!, licensed Pony Canyon to distribute season 3 through seventeen DVD compilations from July 7, 2006, to March 7, 2007,[22][23] under the subtitle "level 3".

[27] This was likewise due to the fact that Shogakukan owns a stake in Viz, and that Raiku’s departure meant that his manga would no longer be available outside Japan after volume 25.