Things are looking bleak as Zatch and company struggle desperately against the gargantuan Demolt, the most ferocious mamodo in Zofis's private army. Zatch's ex-girlfriend from the mamodo world, Penny, decides to make the ultimate sacrifice, but will that be enough to ensure victory? And what's this? Is Zatch about to discover a new spell?

Kiyo just can't seem to shake the sneaking suspicion that he's being watched... because he is! Enter Koral Q, a robotic rival for the throne who claims to know all about Zatch's spells and their effects. Will Koral Q's reservoir of data on the mamodo world prove to be Zatch and Kiyo's undoing?

Ponygon, Zatch's equine mamodo buddy, needs to get to Hokkaido so he can meet up with his partner, the super-groovy Kafk Sunbeam. But awaiting them in this snow-swept landscape is an even more powerful horse-like mamodo who challenges Ponygon to a battle. Will the fire burning inside Ponygon's heart help him defeat his new opponent's devastating ice attacks?

Zatch is a demon child with magic powers that are unleashed by reading spells from a mysterious red book... and there are 99 other kids like Zatch who must fight to become the king of the demon world! As the battles wit the other little demons intensify, Kiyomaro's loyalty to Zatch is put to the test. And what will happen when the red book is stolen?

There's a new mamodo on the scene - and he has bunny ears. Momon is a somewhat cowardly character who's been able to avoid competing in the battle to become king thanks to his radar-like abilities that allow him to pinpoint other mamodo's locations. But when he uses his skills to catch the ever-ready-to-strangle-someone Tia off guard, he risks earning himself a fast trip to the hospital. What's a naughty bunny in the big city to do?

Zatch, Kiyo, Parco Folgore and Kanchom continue their heated battle with the cigar-chomping mamodo Keith, and things aren't looking pretty. Keith has vowed to finish the fight before his stogie is done, and now Kanchom's only hope for survival rests on a new spell that has the potential to literally multiply his power. But will this new ability simply create a host of cowardly Kanchoms, or will this timid mamodo finally find the courage to stand up to his rivals?

Zatch, Kiyo and their friends are in their most dangerous predicament yet - inside the body of a mamodo so big, it could swallow a skyscraper! The evil Riou wants to release the giant mamodo Faudo from his prison, and to stop him, they'll have to fight their way through the monster's heart, his brain, and the rest of his enormous organs! But are even Riou's normal-sized allies too much for our heroes to handle? To win this battle, they'll need to have guts - or get inside guts!

The mighty Faudo, a mamodo bigger than a mountain, has come to life... and he's on his way to destroy Japan! Inside the monster's innards, Zatch and his friends fight Riou, the evil mamodo who controls the behemoth. Can they stop him in time, or is Tokyo doomed? Who will be the master of monsters?

As the giant mamodo Faudo races toward Japan, our heroes fight a last-ditch battle inside the monster, to reach the control center in Faudo's brain! Riya and Aleshie turn against their evil masters and fight to stop Faudo, only to face the devastating shadow power of Zaruchimu. Meanwhile, Ted and Jido crash the party by flying a plane into Faudo's pants! But will they be too late?

The countdown has begun - in less than an hour, the giant mamodo Faudo will destroy Japan! In the control center within Faudo's brain, Zatch's evil brother Zeon watches smugly as the heroes fight their way through Faudo's body to stop his twisted plan! Ted is finally reunited with his beloved Cherish, only to find her working for the enemy. Meanwhile, two mamodo archrivals face each other in a battle on the edge of Faudo's brain!

Kiyo and Zatch are gradually mastering more spells from the red book as they continue to battle other mamodo and their human masters. And when the school goes on a special camping trip, will Kiyo turn out to be the world-class curry chef that Suzy claims?

Kiyo and Zatch are gradually mastering more spells from the red book as they continue to battle other mamodo and their human masters. And when the school goes on a special camping trip, will Kiyo turn out to be the world-class curry chef that Suzy claims?