* CutShort: In both versions of the anime, it ended before the official resolution to the plot. In Japanese it ended after 150 episodes, right after the battle with Zeno. The Dub cuts out at 104 right before the start of the Faudo Arc.
* FandomNod: The ending of the manga, which includes a group photo containing nearly every single demon who appeared in the series.
* HeyItsThatVoice:
** Gash/Zatch Bell's American voice actress is Debi Derryberry, also known as the voice of Jimmy Neutron. Creator/IkueOtani voices him in the Japanese version; coincidentally, she's known for voicing another [[{{Anime/Pokemon}} anime protagonist who uses lightning a lot.]]
** Tio/Tia's voice actor in the English dub is Creator/MelissaFahn, who also did the voice of [[WesternAnimation/InvaderZim Gaz]] and [[Franchise/{{Digimon}} Rika]].
** [[SaintSeiya Aquarius Camus]] is Dr. Riddles.
** Zatch and Zeno's Japanese voice actors are [[Creator/IkueOtani Pikachu]] and [[Creator/UraraTakano Raichu]] [[{{Anime/Pokemon}} respectively]]. [[spoiler: Given that they're brothers, this was quite the casting call.]]
** In the English version Zofis is [[WesternAnimation/XiaolinShowdown Wuya.]]
* OfficialFanSubmittedContent: A card was decided by a contest.
* TheOtherDarrin: Zatch's seiyuu switched in the final ten episodes due to Creator/IkueOtani's maternity leave.
* TalkingToHimself: The dub was cancelled before the Faudo arc, so this is averted for Zatch and Zeno.