Publication Information
- Gaim : Knuckle Lockseed
- Japanese :
- Version : Kamen Rider Gaim
- Type : Rider Lockseed
- Usage : Transformation & Weaponary
- Users : Zack
- Appeareance : Kamen Rider Gaim
Kamen Rider Knuckle or Zack, he later receives a mass production Sengoku Driver from Kaito who obtained it during his capture and escape from Yggdrasill. With the Sengoku Driver he received and his own Kurumi Lockseed, he is able to transform into Kamen Rider Knuckle, the second rider in Team Baron.
Like with the other Armored Riders, Kamen Rider Knuckle's forms are called Arms Āmuzu. His Sengoku Driver plays American rock & roll music and emits a guitar riff sound before every transformation, while his personal Lockseeds are styled in pure English with a Mr. Adjective/Nountheme. By pressing the Sengoku Driver's Cutting Blade down on the Lockseed after transforming from one to three times, Knuckle can activate one of three finishing moves based on his current Arms form: Squash, Au Lait, or Sparking.
Knuckle Kurumi Lockseeds
- Knuckle Kurumi Lockseeds
- Allows Knuckle to transform into Kurumi Arms, equipped with the Kurumi Bombers. Its code is LS-02 and it is Class C+. Thus far the Kurumi Lockseed is the only known plus-level Lockseed. One was in the possession of Kaito Kumon before being given to Zack. Ironically, it was later destroyed in battle by Kaito after transforming into Over Lord Baron. He obtains a new one, given to him by Mitsuzane Kureshima. The official image for it on TV-Asahi originally featured an open view, which was completely blank.
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- Knuckle Jimber Marron Lockseeds
- Jimber Marron Lockseeds/Arms is Knuckle's walnut/chestnut-based armored Japanese Samurai/Brawler form, as well as his final form. which is accessed through the simultaneous use of the Kurumi Lockseed and Marron Energy Lockseed via the Genesis Core replacing his Sengoku Driver's Rider Indicator. While assuming Jimber Marron Arms, Knuckle dons the Jimber Marron Armor Part and his Arms Weapon is the Marron Bombers.
- Appeareance : Gaim Gaiden : Kamen Rider Knuckle
- This Arms' finisher has three variations depending on which function Knuckle activates from his Sengoku Driver.
- Squash : Knuckle jumps up and fires the Marron Bombers' spikes at the enemy, shedding off their shells before landing two fiery punches at once.
- Knuckle Crash : Knuckle uses an Au Lait function, and he charges the "peeled" Marron Bombers with flames and delivers an explosive punching attack.
Knuckle Suika Lockseed
- Knuckle Suika Lockseed
- Allows Knuckle to transform into Suika Arms, a colossal mecha-like form that is capable of assuming 3 different modes and equipped with two unnamed energy gloves in Yoroi Mode. Its code is LS-10 and it is Class A. Originally belonging to Kouta, he loaned it to Kaito, who later gave it to Zack, who then gave it to Hideyasu. It was then given back to Kaito who loaned it to him again.
- Allows Gridon to transform into Donguri Arms, equipped with the Donkachi. Its code is LS-03 and it is Class B. Hideyasu has lost his first Donguri Lockseed to Team Gaim after he and Ryoji had beaten Kaito, and had to buy another one from Sid, and lost that one to Bravo, which was most likely devoured by the Inves that became the Evolved Inoshishi Inves. He obtains another one sometime before the Lockseed Collecting Christmas Game. Hideyasu's Lockseed and Sengoku Driver are destroyed by Knuckle and Marika.
- A Donguri Lockseed was modified by Oren Pierre Alfonzo, bearing his likeness inside. It announced phrases by him and dropped sudden bad luck as opposed to Donguri Arms on Hideyasu's head when he tried to transform. Oren had swapped it with his Donguri Lockseed to discipline him, having expecting him to try and harm Akira Kazuraba.
- Knuckle Matsubokkuri Lockseeds
- Allows Kurokage to transform into Matsubokkuri Arms, equipped with the Kagematsu. Its code is LS-01 and it is Class C. One was shown in the possession of Zack. Hase has lost his first Matsubokkuri Lockseed to Team Gaim after he and Hideyasu beat Kaito, and had to buy another one from Sid, and lost that one to Bravo, which was most likely devoured by the Inves that became the Evolved Inoshishi Inves. He later obtains another one but it was later destroyed by Zangetsu, along with his Sengoku Driver. After that he got another one, but lost it when he was defeated by Baron in an Inves Game. Another one was later obtained by Jonouchi in the finale to honor Hase's death.
Knuckle Kuuga Lockseeds
- Knuckle Kuuga Lockseeds
- Allows the user to transform into Kuuga Arms. The core image depicts the Arcle while the lid backside image depicts Yusuke Godai's thumbs up gesture. Ryugen-styled Lockseed.
- Transformation : Kuuga Arms : Cho Henshin, Ha-Ha-Ha!
- Squash : Dragon Form
- Au Lait : Pegasus Form
- Sparking : Titan Form