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PS154 : Yikes, It's Yanma!
Gold, Silver & Crystal arc
PS156 : Notorious Noctowl
Capital Kabutops
VS カブトプス
VS Kabutops
Shogakukan full volume Chapter 155 in Vol. 13
VIZ Media full volume Adventure 155 in Vol. 13
Series Pokémon Adventures
Location Indigo Plateau

Capital Kabutops (Japanese: VS カブトプス VS Kabutops), titled Heads On Kabutops! in the Chuang Yi translation, is the 155th chapter of the Pokémon Adventures manga, and the 65th chapter of the Gold, Silver & Crystal arc.


Spoiler warning: this article may contain major plot or ending details.

Beginning the series of exhibition matches between the Gym Leaders at the Indigo Plateau are Brock, representing Kanto, and Jasmine, representing Johto. Brock calls his Kabutops forward, declaring that it is the Kabuto he protected at the Pewter Science Museum when it was under attack a year ago. At this stage, Jasmine is still choosing between her Pokémon. She calls out her two Magneton, her two Togetic, and her Olivine Lighthouse guard, Amphy. After patting each of them gently, Jasmine decides to call forth Amphy.

Misty, watching from the Kanto bench, is worried about Brock's chances of winning. Sitting next to her, Erika wonders what Jasmine's specialist type is, as she put out three Electric-types and two Flying-types before choosing who to start with. At that moment, Amphy is floored by an Ancient Power from Brock's Kabutops. It gets up but struggles. Retrieving Amphy, Jasmine declares to Brock that she also trains Rock-type Pokémon as well. She thus calls forward what Brock thinks is an Onix; Brock responds by switching for his own Onix.

Brock questions whether his Onix's opposite number is a mutation or a rarity, then, without warning, orders his Onix to bind its target. To Brock's bewilderment, his Onix begins to recoil from the impact. Mary, commentating on the battle, marvels at the powerful defense of Jasmine's Pokémon, and believes this is why she is called "The Steel-Clad Defense Girl". Suddenly, rocks begin to fall off Jasmine's Pokémon. It eventually shakes off its rocky disguise to reveal itself as an iron serpent. Jasmine, taking advantage of the confusion stirred among Brock and the Kanto bench, orders her Pokémon to use Crunch. Brock's Onix is knocked out, and Jasmine is declared the winner of the match.

After Brock takes another look at his opposition, he is shocked to hear from Jasmine that her Pokémon used to be an Onix, and thus, evolved from an Onix. The revelation also shocks the audience, who realize that the victor is an entirely new species. Mary thus contacts Professor Oak, and he appears on the stadium screen to announce his research on the new Pokémon. Oak announces that little was known about the species in question until an instance of it was found and caught in the wild by one of his dependents, and thus the species will be officially recognized by the name of Steelix. Oak also hinted that after the relevant authorities are contacted, a Steel type may also be recognized, with Skarmory and Magneton among those that will belong to the group.

Jasmine admits that because an unknown species would scare the audience, she deliberately coated her Steelix in rocks to make it look nicer. The scoreboard eventually updates, bringing the Johto team into an early lead.

Major events

For a list of all major events in the Pokémon Adventures manga, please see the history page.
201 Spoilers end here. 201


Pokémon debuts





  • This is one of the few times where a Pokémon’s type change is acknowledged in-universe, particularly Magnemite being recognized as a Steel-type.


  • In the Chuang Yi version, Amphy is referred to by its Japanese name, Akari.

In other languages

PS154 : Yikes, It's Yanma!
Gold, Silver & Crystal arc
PS156 : Notorious Noctowl
Project Manga logo.png This article is part of Project Manga, a Bulbapedia project that aims to write comprehensive articles on each series of Pokémon manga.