Nobody talks about this one. Shin-chan at his most feral, no plot to hide behind, just a kid in an apron competing in food battles with the energy of someone who discovered chaos is funnier than punchlines. The movie knows exactly what it is: thirty minutes of absurd eating contests, absurd anatomy jokes, and absurd character moments that land because the timing never apologizes. You're not here for the story. You're here because watching a five-year-old demolish a grown man in a dumpling competition while screaming about butts is the kind of dumb that actually works when it's executed this hard.

Shinnosuke and his friends in the Kasukabe Defense Force, Kazama, Nene, Masao and Bo, decide to go without their parents to the B-class Gourmet Carnival, a major event in Kasukabe. Their goal is the delicious yakisoba sauce prepared by a cook called Sauce's Ken. Along the way, a mysterious woman asks them to carry a legendary sauce to Sauce's Ken. They set off for the event with it, but they stray onto a mountain, and the A-class Gourmet Organization, a group scheming to wipe out B-class gourmet food, tries to take the sauce from them. Food is the theme of this comic adventure.