Lockseeds

Lockseeds (ロックシード) are mysterious devices that are the source of the Armored Riders' powers. They all have powers associated with fruits, seeds, berries, and nuts. Lockseeds can grow on trees in the Helheim Forest, assuming the shape of a flower first.

The Inves love Lockseed flowers, regarding them as their favorite food. However, if an Inves consumes a mature Lockseed, it assumes its Berserker State, and if it consumes another mature Lockseed, then that Inves will evolve into its Evolved State.

In Inves Games, people use mature Lockseeds to summon Inves to do battle. When a person wearing a Sengoku/Genesis Driver picks Lockseed flowers, they will quickly turn into mature Lockseeds. When Inves Games starts, the Lockseeds say "Battle, Start!". After Inves Games battle, these Lockseeds can say "You Win!" or "You Lose..." depending on the results of battle. After a victory, the toy Lockseed can say "Rank Up!" which has yet to be used in the show.

In the Hyper Battle DVD, the Lockseeds were rusted, preventing transformations and Inves summoning.

If an Armored Rider summons an Inves in a battle, then they will be fully materialized in the real world, however if a Next Generation Rider summons an Inves, one Lockseed can call in three at a time. If one manages to jailbreak a Lockseed (though Sid had to show how to do so), they can summon fully materialized Inves as well without being an Armored Rider, although there is a chance for the Lockseed to malfunction.

Inves
The Inves love Lockseeds, regarding them as their favorite food. In the Helheim Forest, Inves eat immature Lockseeds by eating the core of the Lockseed and throwing the rest of it away immediately afterwards when they are done.

Immature Lockseeds
Immature Lockseeds, also known as the fruit of Helheim (ヘルヘイムの果実), are Lockseeds in their immature state that grow in the Helheim Forest. They normally look like fruit, however if anyone wearing a Sengoku Driver picks them they will turn into mature Lockseeds. The Inves love both types of Lockseeds, regarding them as their favorite and only food, and will attempt to protect them if they are picked.

People who don't wear a Driver when entering Helheim or/and nearby the place where the Helheim crack portal was opened out of nowhere also seem tempted to eat Immature Lockseeds, and it takes outside help to make sure they don't eat it.

When a living being does eat a premature Lockseed, be it human or an animal, it quickly rewrites the creature's DNA and minds, as they will turn into an Inves, and in human cases like Ryoji Hase did, into an Inves in a Berserker State, where the Yggdrasill higher-ups then calls them "Category H" Inves; Inves that were formerly human. Confirmed Category H Inves are: However, it can be used as an alternative food source if a person holding a Lockseed inserts it in a Sengoku Driver like Kouta Kazuraba whom used a Himawari Lockseed as a substitute for food.
 * Yuya Sumii of Team Gaim; devoured an immature Lockseed and mutated into a Byakko Inves. He was unknowingly killed by Armored Rider Gaim.
 * An unnamed maintenance worker; devoured an immature Lockseed and mutated into the Komori Inves (Mutant). He was killed by Armored Riders Gaim and Ryugen.
 * Ryoji Hase of Team Raid Wild; devoured an immature Lockseed and mutated into a Hekija Inves. While Gaim tried to help Ryoji reclaim his humanity, he was murdered by New Generation Rider Sigurd when Gaim could not gather the mental fortitude to slay Ryoji.

Classes
Matured Lockseeds are given ranks, from D to A, but it is unknown if either the number of the Lockseed, the chance of rarity of such a Lockseed being found, or a combination of the two makes the Lockseed's ranking.

A-Classed Lockseeds are unbreakable, which is useful for both transformation as an Armored Rider or to summon a high classed Inves. One drawback is that the summoned Inves is in its Berserker State, and if said Inves consumes a Lockseed that summoned it or an entirely different Lockseed, it will evolve into a second form of itself called an Evolved State (進化態).

Beyond the normal variety of Lockseeds, there exists another brand of Lockseed in the form of Lock Vehicle Lockseeds (ロックビークルロックシード). They are indicated by their rougher design and their theme being based on flowers. Once unlocked, the Lock Vehicles will unfold from their Lockseed Modes into their Vehicle Modes, and have the capacity to breach into the Helheim Forest when they hit a certain speed. Due to these Lockseeds being made mainly as a mode of transportation, Lock Vehicle Lockseeds do not have a Lockseed ranking. They are quite rare to appear naturally, as Yggdrasill's mass picking for R&D might have made a hit to the appearance of Lock Vehicle Lockseeds.

Yggdrasill has managed to create fully functional artificial Lockseeds called Energy Lockseeds (エナジーロックシード), more powerful Lockseeds that sacrifices the ability to summon a normal Arms Weapon when used in a Driver, instead summoning a Sonic Arrow. These particular Lockseeds can only be used by a New Generation Rider with a Genesis Driver, though there is a roundabout way Sengoku Driver-wearing Armored Riders can use Energy Lockseeds. In terms of rankings, Energy Lockseeds are given the general rank of Class S, outranking even the more powerful natural Lockseeds.

Kamen Rider Gaim's Lockseeds

 * Orange Lockseed (オレンジロックシード): Allows Kamen Rider Gaim to transform into Orange Arms, equipped with the Daidaimaru. Its code is LS-07 and it is Class A. Another one is seen in the possession of DJ Sagara.
 * Pine Lockseed (パインロックシード): Allows Kamen Rider Gaim to transform into Pine Arms, equipped with the Pine Iron. Its code is LS-05 and it is Class A. He obtains this Lockseed after beating Kaito Kumon in an Inves Game.
 * Ichigo Lockseed (イチゴロックシード): Allows Kamen Rider Gaim to transform into Ichigo Arms, equipped with the Ichigo Kunai. Its code is LS-06 and it is Class A. Kouta had found his Ichigo Lockseed, as well as his Orange Lockseed and Sengoku Driver, during his first adventure into the Helheim Forest; however, Peco managed to disarm it from him and then the Shika Inves Kouta summoned for an Inves Game consumed it to evolve into a Evolved Inves. Some time after, Gaim was able to obtain another Ichigo Lockseed, which had belonged to Team Invitto until they lost an Inves game to Ryugen, before he appears in the World within the Magic Stone.
 * Suika Lockseed (スイカロックシード): Allows Kamen Rider Gaim to transform into Suika Arms, a colossal mecha-like form that is capable of assuming 3 different modes and equipped with the Suika Sojinto while in Yoroi Mode. Its code is LS-10 and it is Class A. This Lockseed was originally in possession of Takatora Kureshima until Mitsuzane stole it from him. Another one is achieved, when Kouta got another Suika Lockseed in the Yggdrasill's base in Helheim Forest. After Kouta uses the Suika Lockseed, it loses its color and becomes unresponsive for a certain amount of time. In the toyline, the Suika Lockseed makes the sound of bowling pins being knocked down after its transformation call is announced. Kouta loaned his personal Suika Lockseed to Baron to fight Sigurd during a failed invasion into Yggdrasill, but has yet to get it back, while Ryugen has the one he stole from his brother.
 * Banana Lockseed (バナナロックシード): Allows Kamen Rider Gaim to transform into Banana Arms, equipped with the Banaspear. Its code is LS-08 and it is Class A. The Banana Lockseed is normally used by Kamen Rider Baron. However, when Gaim tag teams with him in an attempt to defeat Kamen Rider Bravo, Baron lends him his Lockseed to assume Banana Arms while Baron himself assumes Mango Arms.
 * Lemon Energy Lockseed (レモンエナジーロックシード): Allows Kamen Rider Gaim to transform into Jimber Lemon Arms when he activates the Lemon Energy Lockseed on the Genesis Core after it is manually attached to the Sengoku Driver, granting him enhanced strength. Its code is ELS-01 and it is a Class-S. Gaim obtained this Energy Lockseed from DJ Sagara, along with a Genesis Core, when Kouta impressed the DJ with his sense of duty.
 * Cherry Energy Lockseed (チェリーエナジーロックシード): Allows Kamen Rider Gaim to transform into Jimber Cherry Arms when he activates the Cherry Energy Lockseed on the Genesis Core after it is manually attached to the Sengoku Driver, granting him enhanced speed. Its code is ELS-02 and it is a Class-S. Gaim obtained this Energy Lockseed by beating Sigurd with a Jimber Lemon Squash-fueled Burai Kick.
 * Peach Energy Lockseed (ピーチエナジーロックシード): Allows Kamen Rider Gaim to transform into Jimber Peach Arms when he activates the Peach Energy Lockseed on the Genesis Core after it is manually attached to the Sengoku Driver, granting him enhanced hearing, but with a sensitivity to higher-pitched sound waves. Its code is ELS-03 and it is a Class-S. Gaim obtains this Energy Lockseed by ripping it off of Marika's Genesis Driver when she wasn't expecting it.
 * Kachidoki Lockseed (カチドキロックシード): Allows Kamen Rider Gaim to transform into Kachidoki Arms, equipped with the DJ Gun as his Arms Weapon and the Kachidoki Bata twin flags attached to his back. Its code is KLS-01. Gaim obtained this Lockseed from DJ Sagara, who had created it by first transmutating an orange into a metallic version of one, then into the Kachidoki Lockseed. In the toyline, a cheaper varient of the Kachidoki Lockseed is available, which resembles a normal Lockseed, for those unable to purchase a DX Kachidoki Lockseed.
 * Kiwami Lockseed (極(キワミ)ロックシード): A special Lockseed-like key that when activated on the Senyo/Gunyo Joint after it is manually attached to the Sengoku Driver allows Kamen Rider Gaim to evolve his Kachidoki Arms into Kiwami Arms, granting him access to every Arms Weapon, except for both of the Suika Arms weapons and all of the Legend Rider Arms Weapons. Its code is LS-$$\infty$$ (LS-Infinity).
 * Fresh Orange Lockseed (フレッシュオレンジロックシード): Allows Gaim to transform into Fresh Orange Arms, equipped with twin Daidaimarus. Its code is LS-07, the same as the original Orange Lockseed. Only appears in Kamen Rider Gaim Hyper Battle DVD: Fresh Orange Arms is Born!.
 * Fresh Pine Lockseed (フレッシュパインロックシード): Allows Gaim to transform into Fresh Pine Arms, equipped with twin Pine Irons. It's code is LS-05, the same as the original Pine Lockseed. Only appears in Kamen Rider Gaim Hyper Battle DVD: Fresh Orange Arms is Born!.

Kamen Rider Baron's Lockseeds

 * Banana Lockseed (バナナロックシード): Allows Kamen Rider Baron to transform into Banana Arms, equipped with the Banaspear. Its code is LS-08 and it is Class A. Kaito obtained his Banana Lockseed along with his Sengoku Driver from Lock Dealer Sid. Another one is seen in the possession of DJ Sagara.
 * Mango Lockseed (マンゴロックシード): Allows Kamen Rider Baron to transform into Mango Arms, equipped with the Mango Punisher. Its code is LS-11. Kaito obtains it while he was in the Helheim Forest for the first time, which is later used in episode 8.
 * Suika Lockseed (スイカロックシード): Allows Kamen Rider Baron to transform into Suika Arms, a colossal mecha-like form that is capable of assuming 3 different modes and equipped with a lance while in Yoroi Mode. Its code is LS-10 and it is Class A. Gaim loaned Baron one of his Suika Lockseeds during their attempted infiltration into Yggdrasil via the Crack that they use that enters the Helheim Forest, but Kaito hasn't of yet returned the Lockseed back to Kouta.
 * Lemon Energy Lockseed (レモンエナジーロックシード): Allows Kamen Rider Baron to transform into Lemon Energy Arms when he activates the Lemon Energy Lockseed on the Genesis Driver, making him a New Generation Rider in the process. Its code is ELS-01 and it is a Class-S.
 * Ichigo Lockseed (イチゴロックシード): Allows Kamen Rider Baron to transform into Ichigo Arms, equipped with the Ichigo Kunai. Its code is LS-06 and it is Class A. Baron uses this Lockseed in the Hyper Battle DVD.
 * Kiwi Lockseed (キウィロックシード): Allows Kamen Rider Baron to transform into Kiwi Arms, equipped with the Kiwi Gekirin. Its code is LS-13 and is Class A. Baron uses this Lockseed in the Hyper Battle DVD.
 * Melon Lockseed (メロンロックシード): Allows Kamen Rider Baron to transform into Melon Arms, equipped with the Melon Defender. Its code is LS-04 and it is Class A. Baron uses this Lockseed in the Hyper Battle DVD.

Kamen Rider Ryugen's Lockseeds

 * Budou Lockseed (ブドウロックシード): Allows Kamen Rider Ryugen to transform into Budou Arms, equipped with the Budou Ryuhou. Its code is LS-09 and it is Class A.
 * Kiwi Lockseed (キウィロックシード): Allows Kamen Rider Ryugen to transform into Kiwi Arms, equipped with the Kiwi Gekirin. Its code is LS-13 and is Class A. It was found in the Helheim Forest when Ryugen picked a premature Lockseed when Gaim remarked about what the "fruit" will turn into.
 * Suika Lockseed (スイカロックシード): Allows Kamen Rider Ryugen to transform into the colossal Suika Arms, capable of assuming 3 different modes and equipped with the Suika Sojinto while in Yoroi Mode. Its code is LS-10 and it is Class A. After Kouta uses the Suika Lockseed, Mitsuzane found out that it loses its color and becomes unresponsive for a certain amount of time. In the toyline, the Suika Lockseed makes the sound of bowling pins being knocked down after its transformation call is announced. Despite being used by Kouta, he always returns it to Mitsuzane after the battle. However, Mitsuzane has yet to use it by himself.
 * Pine Lockseed (パインロックシード): Allows Kamen Rider Ryugen to transform into Pine Arms, equipped with the Pine Iron. Its code is LS-05 and it is Class A. Ryugen uses this Lockseed in the Hyper Battle DVD.
 * Banana Lockseed (バナナロックシード): Allows Kamen Rider Ryugen to transform into Banana Arms, equipped with the Banaspear. Its code is LS-08 and it is Class A. Ryugen uses this Lockseed in the Hyper Battle DVD.
 * Melon Lockseed (メロンロックシード): Allows Kamen Rider Ryugen to transform into Melon Arms, equipped with the Melon Defender. Its code is LS-04 and it is Class A. Ryugen uses this Lockseed in the Hyper Battle DVD.

Kamen Rider Zangetsu's Lockseeds

 * Melon Lockseed (メロンロックシード): Allows Kamen Rider Zangetsu to transform into Melon Arms, equipped with the Melon Defender. Its code is LS-04 and it is Class A.
 * Ichigo Lockseed (イチゴロックシード): Allows Kamen Rider Zangetsu to transform into Ichigo Arms, equipped with the Ichigo Kunai. Its code is LS-06 and it is Class A. Zangetsu uses this Lockseed in the Hyper Battle DVD.
 * Mango Lockseed (マンゴロックシード): Allows Kamen Rider Zangetsu to transform into Mango Arms, equipped with the Mango Punisher. Its code is LS-11. Zangetsu uses this Lockseed in the Hyper Battle DVD.
 * Budou Lockseed (ブドウロックシード): Allows Kamen Rider Zangetsu to transform into Budou Arms, equipped with the Budou Ryuhou. Its code is LS-09 and it is Class A. Zangetsu uses this Lockseed in the Hyper Battle DVD.

Kamen Rider Gridon's Lockseeds

 * Donguri Lockseed (ドングリロックシード): Allows Kamen Rider Gridon to transform into Donguri Arms, equipped with the Donkachi. Its code is LS-03 and its 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.
 * 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.

Kamen Rider Kurokage's Lockseeds

 * Matsubokkuri Lockseed (マツボックリロックシード): Allows Kamen Rider 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. Ryoji has lost his first Matsubokkuri Lockseed to Team Gaim after he and Ryoji 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 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.

Kamen Rider Bravo's Lockseeds

 * Durian Lockseed (ドリアンロックシード): Allows Kamen Rider Bravo to transform into Durian Arms, equipped with the Duri Noko. Its code is LS-12. It originally belonged to Sonomura of Team Red Hot who had received the last Sengoku Driver from Sid. However, he ended getting both the Driver and Lockseed confiscated by Oren Pierre Alfonzo for not only being too loud in his shop, but for having the Sengoku Driver in the first place, the blood-thirsty pastry chef viewing Sonomura as an unfit candidate to use the Driver.

Kamen Rider Knuckle's Lockseeds

 * Kurumi Lockseed (クルミロックシード): Allows Knuckle to transform into Kurumi Arms, equipped with the Kurumi Bombers. Its code is LS-02 and it is Class C+. One was in the possession of Kaito Kumon before being given to Zack. The official image for it on TV-Asahi originally featured an open view, which was completely blank. This has since been revised to only show the closed version. Due to it featuring some holes where screws would be present on the toys, it may be an unfinished prop that was shown by mistake. The version used by Knuckle features a bottom flap with the weapon as the rest of the form Lockseeds do.

Kamen Rider Bujin Gaim's Lockseeds

 * Blood Orange Lockseed (ブラッドオレンジロックシード): Allows Bujin Gaim to transform into Blood Orange Arms, equipped with a crimson version of the Daidaimaru. Like the original Orange Lockseed, its number is LS-07 and it is Class A. However, this Lockseed's voice is distorted to make it sound much deeper than the others.

Kamen Rider Fifteen's Lockseeds

 * Fifteen Lockseed (フィフティーンロックシード): Allows Kamen Rider Fifteen to transform into his default Arms, equipped with the Bone Sword. Unlike other Lockseeds, it has no code. The core image depicts the chest armor of Fifteen and the gold kanji for "fifteen", while the lid backside image depicts the Bone Sword.

Kamen Rider Zangetsu Shin's Lockseeds

 * Melon Energy Lockseed (メロンエナジーロックシード): Allows Kamen Rider Zangetsu Shin to transform into Melon Energy Arms. Its code is ELS-04 and it is a Class-S.

Kamen Rider Duke's Lockseeds

 * Lemon Energy Lockseed (レモンエナジーロックシード): Allows Kamen Rider Duke to transform into Lemon Energy Arms. Its code is ELS-01 and it is a Class-S. Kouta Kazuraba was given a Lemon Energy Lockseed, along with a Genesis Core, by DJ Sagara after the latter was impressed by the former's sense of duty. It was later revealed that the Lemon Energy Lockseed and Genesis Core that DJ Sagara had were stolen from Ryoma's, though, he soon makes another one, along with a replacement Genesis Core.

Kamen Rider Sigurd's Lockseeds

 * Cherry Energy Lockseed (チェリーエナジーロックシード): Allows Kamen Rider Sigurd to transform into Cherry Energy Arms. Its code is ELS-02 and it is a Class-S. Sigurd lost his first Cherry Energy Lockseed to Gaim after the Rider beat him with an enhanced Burai Kick while in Jimber Lemon Arms. However, he acquired another one.
 * Sid's Lockseed (シドのロックシード): Seen in the initial trailer being held by Sid, then later appeared in the series proper. It appears to have an S shape on the front and is colored in black and gold. It is revealed that it can be used in a Lockseed compatible weapon and, if used to shoot/slice through specific Lockseeds, can summon autonomous versions of Lockvehicles and Suika Arms armors to fight for him. When activated on the Sonic Arrow as seen in episode 24, it announces "Connecting".

Kamen Rider Marika's Lockseeds

 * Peach Energy Lockseed (ピーチエナジーロックシード): Allows Kamen Rider Marika to transform into Peach Energy Arms. Its code is ELS-03 and it is a Class-S. Marika lost her first Peach Energy Lockseed to Gaim when the Rider ripped the Energy Lockseed off her Genesis Driver after she detransformed. However, she acquired another one.

Kamen Rider Kurokage Shin's Lockseeds

 * Matsubokkuri Energy Lockseed (マツボックリエナジーロックシード): Allow Kamen Rider Kurokage Shin to transform into Matsubokkuri Energy Arms. Its code is ELS-05 and it is Class-S.

Inves Games Only

 * Himawari Lockseed (ヒマワリロックシード): This Lockseed is used to summon Elementary Inves to use in Inves Games. Its code is LS-00 and it is Class D. It appears to be a very common Lockseed, being used by Mai Takatsukasa, Kaito Kumon, and Ryoji Hase with still others being sold by Lock Dealer Sid. Strangely, when opened, the bottom doesn't give any indication of an associated weapon. While not used for the Inves Game, this Lockseed could act like a food supply when attach on the Sengoku Driver. Additionally, the toy version doesn't have any sounds associated with a form either, giving it only the generic Inves Game announcements and Inves sounds.

Toy-Exclusive

 * Momotaros Lockseed (モモタロスロックシード): The core image depicts Momotaros announcing "Here I come!" (俺、参上！) while the lid backside image depicts the Momotarosword. Zangetsu-styled Lockseed.
 * Transformation: Momotaros Arms! Ore Sanjou!
 * Squash: Momotaros Squash
 * Au Lait: Ore no Au Lait, Part 2
 * Sparking: Momotaros Sparking! Ikuze, ikuze, ikuze
 * Ankh Lockseed (アンクロックシード): The core image depicts Ankh holding his Core Medals while the lid backside image depicts the broken in half Taka Medal. Baron and Gridon-styled Lockseed.
 * Transformation: Ankh Arms! Happy Birth~Day!
 * Squash: Orange Ice
 * Au Lait: Banana Ice
 * Sparking: Budou Ice
 * Christmas Lockseed (クリスマスロックシード): A Christmas-themed Orange Lockseed.
 * Transformation: Happy Time!
 * Squash: Orange Squash
 * Au Lait: Orange Au Lait
 * Sparking: Orange Sparking
 * Roulette Lockseed (ルーレットロックシード): A modification of the Orange Lockseed used in the Kamen Rider Gaim board game.
 * Doesn't have any transformation sounds. Instead, it just acts as a method of playing the board game.
 * Shocker Lockseed (ショッカーロックシード): A Lockseed bearing the likeness of a Shocker Combatman. The core image depicts the Shocker belt worn by lower members of Shocker while the lid backside image is a small group of Shocker Combatmen. Gaim and Kurokage-styled Lockseed.
 * Transformation: Shocker Arms! Jigoku no gundan on Parade! Eeeee!
 * Squash: Nihon seifuku suru zo! Eeeee!
 * Au Lait: Sekai seifuku suru zo! Eeee! Eeee!
 * Sparking: Uchū seifuku suru zo! Eeee! Eeee! Eeee!

Lock Vehicle Lockseeds

 * Sakura Hurricane Lockseed (サクラハリケーンロックシード): Summons a Sakura Hurricane Rider Machine. It is Lockseed LV-01. Gaim obtains his during his battle with Baron from Lock Dealer Sid, which Ryugen temporarily borrowed. Kurokage got one from Sid to use in the Lockseed capture challenge, but kept it temporarily. Bravo also obtained one through unknown means, though he says that it wasn't hard. It isn't sure if Bravo has his still.
 * Rose Attacker Lockseed (ローズアタッカーロックシード): Summons a Rose Attacker Rider Machine. It is Lockseed LV-02. Baron obtains his during his battle with Gaim from Lock Dealer Sid. Ryugen obtained one from Sid off-screen to save Mai. Gridon received one from Sid during the Lockseed capture challenge, but kept it temporarily.
 * Dandeliner Lockseed (ダンデライナーロックシード): Summons a Dandeliner Rider Machine. It is Lockseed LV-03. The Kurokage Troopers, and Baron use one after picking it from Helheim, though Gaim obtained another one from DJ Sagara on episode 23, having owned a previous Dandeliner in The Fateful Sengoku Movie Battle, but wreaked it.
 * Tulip Hopper Lockseed (チューリップホッパーロックシード): Summons a Tulip Hopper Rider Machine. It is Lockseed LV-04. The Kurokage Troopers mainly use these, though DJ Sagara gave Gaim one as well.

Legend Rider Lockseeds
Listed as movie sets in some sources, the Legend Rider Lockseeds (レジェンドライダーロックシード) contain the power of a Kamen Rider that they are based on. The first set contains the Double and Wizard Lockseeds, while the second set includes the OOO and Fourze Lockseeds. The Arms of these Lockseeds are based off of the Rider it is based on, but doesn't exactly offer much of that form's abilities.

Like normal Lockseeds they contain images when opened, the inside image depicts the Rider's Transformation Belt while the image on the backside of the lid usually depicts the item which is inserted to commence transformation, or something else related to the Rider, denoting them as the ingredients that make the represented Rider.

These new armors for the Riders appeared in the Movie War film, Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle. These sets were released in December.

Legend Rider Lockseeds later appear in Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai where they are used by the villainous Kamen Rider Fifteen.

In the Movie War, the Legend Rider Lockseeds were created with transformation items belonging to defeated Bujin Riders (Joker Memory, Taka Medal, Rocket Switch, Flame Ring). In Kamen Rider Taisen, the Heisei Riders and Showa Riders are turned into Lockseeds when they are defeated, transported to the Badan Empire's lair before they are freed by ZX and Gaim.

In-Series

 * Double Lockseed (ダブルロックシード): Allows Kamen Rider Ryugen to transform into Double Arms, equipped with the Trigger Magnum. The core image depicts the Double Driver while the lid backside image depicts the Joker Memory.
 * Squash: Maximum Drive
 * Au Lait: Cyclone
 * Sparking: Joker
 * OOO Lockseed (オーズロックシード): Allows Kamen Rider Baron to transform into OOO Arms, equipped with the Medajalibur. The core image depicts the OOO Driver while the lid backside image depicts the Taka Medal. Also a Gridon-styled Lockseed in the toyline.
 * Squash: Scanning Charge
 * Au Lait: Seiya
 * Sparking: Combo Change
 * Fourze Lockseed (フォーゼロックシード): Allows Kamen Rider Zangetsu to transform into Fourze Arms, equipped with the Rocket Module. By channeling the Fourze Lockseed into the Heisei Rider Lockseed, Kamen Rider Fifteen can transform into Fourze Arms, which instead equips him with the Cosmic Module Barizun Sword. The core image depicts the Fourze Driver while the lid backside image depicts the Rocket Switch. Strangely a Gaim/Kurokage-styled Lockseed in the toyline.
 * Squash: Limit Break
 * Au Lait: Drill On
 * Sparking: Rocket On
 * Wizard Lockseed (ウィザードロックシード): Allows Kamen Rider Gaim to transform into Wizard Arms, equipped with the WizarSwordGun. By channeling the Wizard Lockseed into the Heisei Rider Lockseed, Kamen Rider Fifteen can transform into Wizard Arms. The core image depicts the WizarDriver while the lid backside image depicts the Flame Ring. Also a Kurokage-styled Lockseed in the toyline.
 * Squash: Chōīne, Saikō
 * Au Lait: Special, Please
 * Sparking: Slash Strike
 * Showa Rider Lockseed (昭和ライダーロックシード): Allows Kamen Rider Gaim to transform into any Rider Arms themed after the Showa-Era Riders, granting him access to a different variety of powers and abilities depending on the current set of Arms. The core image depicts the Typhoon while the lid backside image depicts the symbol of #1.
 * Squash: (Rider) Squash
 * Au Lait: (Rider) Au Lait
 * Sparking: (Rider) Sparking
 * Heisei Rider Lockseed (平成ライダーロックシード): Allows Kamen Rider Fifteen to transform into any Rider Arms themed after the Heisei-Era Riders, equipped with a different Arms Weapon depending on the current set of Arms. The core image depicts the colorful lights while the lid backside image depicts the symbol of Gaim.
 * Squash: (Rider) Squash
 * Au Lait: (Rider) Au Lait
 * Sparking: (Rider) Sparking

Toy-Exclusive

 * 1 Lockseed (１号ロックシード): By channeling the #1 Lockseed into the Showa Rider Lockseed, Kamen Rider Gaim can transform into #1 Arms. The core image depicts the Typhoon while the lid backside image depicts Kamen Rider 's Rider Kick gesture. Gaim and Kurokage-styled Lockseed in the toyline.
 * Transformation: #1 (Ichigō) Arms! Waza no Ichigō, Let's go!
 * Squash: Rider Punch
 * Au Lait: Cyclone-gou
 * Sparking: Rider Kick
 * 2 Lockseed (２号ロックシード): Gaim and Kurokage-styled Lockseed.
 * Transformation: #2 (Nigō) Arms! Chikara no Nigō, Let's go!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * V3 Lockseed (Ｖ３ロックシード): Ryugen-styled Lockseed.
 * Transformation: V3 Arms! Chikara, Waza, Double Typhoon!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Riderman Lockseed (ライダーマンロックシード): Gaim and Kurokage-styled Lockseed.
 * Transformation: Riderman Arms! Kagakusha Met On!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * X Lockseed (Xロックシード): Bravo and Knuckle-styled Lockseed.
 * Transformation: X Arms! Mister Kaizorg!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Amazon Lockseed (アマゾンロックシード): Bravo and Knuckle-styled Lockseed.
 * Transformation: Amazon Arms! Mister Wildman!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Stronger Lockseed (ストロンガーロックシード): Zangetsu-styled Lockseed.
 * Transformation: Stronger Arms! Aku wo Taose to Ore wo yobu!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Skyrider Lockseed (スカイライダーロックシード): Ryugen-styled Lockseed.
 * Transformation: Skyrider Arms! Sky, Henshin, Sail-ing Jump!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Super-1 Lockseed (スーパー１ロックシード): Ryugen-styled Lockseed.
 * Transformation: Super-1 Arms! Seki, Shin, Sho-rin Ken!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * ZX Lockseed (ZXロックシード): Gaim and Kurokage-styled Lockseed.
 * Transformation: ZX Arms! #10 (Jūgō) Cyborg Ninja!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Black Lockseed (BLACKロックシード): Gaim and Kurokage-styled Lockseed.
 * Transformation: Black Arms! Seiki Oh Black Sun!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Black RX Lockseed (BLACK RXロックシード): The core image depicts the Sun Riser while the lid backside image depicts the Revolcane. Baron and Gridon Lockseed.
 * Transformation: Black RX Arms! Son of the Sun!
 * Squash: Revolcane
 * Au Lait: Robo Rider
 * Sparking: Bio Rider
 * Shin Lockseed (シンロックシード): Gaim and Kurokage-styled Lockseed.
 * Transformation: Shin Arms! Kaizou Heishi Level 3!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * ZO Lockseed (ZOロックシード): Zangetsu-styled Lockseed.
 * Transformation: ZO Arms! Daijizen Neo Seimeitai!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * J Lockseed (Jロックシード): Gaim and Kurokage-styled Lockseed.
 * Transformation: J Arms! Shingeki Jumbo Formation!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Kuuga Lockseed (クウガロックシード): The core image depicts the Arcle while the lid backside image depicts Yusuke Godai's thumbs up gesture. Ryugen-styled Lockseed.
 * Transformation: Kuuga Arms! Chō, Henshin, Ha-Ha-Ha!
 * Squash: Dragon Form
 * Au Lait: Pegasus Form
 * Sparking: Titan Form
 * Agito Lockseed (アギトロックシード): The core image depicts the Alter Ring while the lid backside image depicts the Storm Halberd and Flame Saber. Zangetsu-styled Lockseed.
 * Transformation: Agito Arms! Mezamero, Sono Tamashii!
 * Squash: Flame Form
 * Au Lait: Storm Form
 * Sparking: Trinity Form
 * Ryuki Lockseed (龍騎ロックシード): The core image depicts the V-Buckle while the lid backside image depicts the Dragreder Advent Card. Zangetsu-styled Lockseed.
 * Transformation: Ryuki Arms! Tatakawanakereba Ikinokorenai!
 * Squash: Final Vent
 * Au Lait: Advent
 * Sparking: Sword Vent
 * Ryuki Survive Lockseed (龍騎サバイブロックシード): Zangetsu-styled Lockseed.
 * Transformation: Ryuki Arms!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Faiz Lockseed (ファイズロックシード): The core image depicts the Faiz Driver while the lid backside image depicts the Faiz Phone. Bravo and Knuckle-styled Lockseed.
 * Transformation: Faiz Arms! Mister Justifaiz!
 * Squash: Exceed Charge
 * Au Lait: Faiz Edge
 * Sparking: Crimson Smash
 * Faiz Blaster Form Lockseed (ファイズブラスターフォームロックシード): Bravo and Knuckle-styled Lockseed.
 * Transformation: Faiz Arms!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Blade Lockseed (ブレイドロックシード): The core image depicts the Blay Buckle while the lid backside image depicts the Change Beetle Rouze Card. Baron and Gridon-styled Lockseed.
 * Transformation: Blade Arms! Sword of Spade!
 * Squash: Lightning Sonic
 * Au Lait: Lightning Blast
 * Sparking: Lightning Slash
 * Hibiki Lockseed (響鬼ロックシード): The core image depicts the Ongekikou Kaentsuzumi while the lid backside image depicts the Onkaku. Zangetsu-styled Lockseed.
 * Transformation: Hibiki Arms! Tatakikome Kiyome no Oto!
 * Squash: Ongeki Da - Ikki Kasei no Kata
 * Au Lait: Ongeki Da - Bakuretsu Kyōda no Kata
 * Sparking: Kitaetemasukara
 * Kabuto Lockseed (カブトロックシード): The core image depicts the Kabuto Rider Belt while the lid backside image depicts the Kabuto Zecter. Gaim and Kurokage-styled Lockseed.
 * Transformation: Kabuto Arms! Ten no Michi My Way!
 * Squash: Cast Off
 * Au Lait: Clock Up
 * Sparking: Rider Kick
 * Den-O Lockseed (電王ロックシード): The core image depicts the Den-O Belt while the lid backside image depicts the Rider Pass. Gaim and Kurokage-styled Lockseed.
 * Transformation: Den-O Arms! Iza Climax!
 * Squash: Full Charge
 * Au Lait: Ikuze, ikuze, ikuze
 * Sparking: Ore no Hissatsu Waza
 * Den-O Climax Form Lockseed (電王クライマックスフォームロックシード): The core image depicts the Den-O Belt with the K-Taros phone attatched while the lid backside image depicts the K-Taros. Gaim and Kurokage-styled Lockseed.
 * Transformation: Den-O Arms! Denkamori Climax!
 * Squash: Mishan (K-Taros ring tone)
 * Au Lait: Sukishan (DenLiner sound)
 * Sparking: Ore-tachi no Hissatsu Waza
 * New Den-O Lockseed (NEW電王ロックシード)
 * Transformation: New Den-O Arms!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA
 * Kiva Lockseed (キバロックシード): The core image depicts the Kivat Belt while the lid backside image depicts the Wake Up Fuestle. Baron and Gridon-styled Lockseed.
 * Transformation: Kiva Arms! King of Fangire!
 * Squash: Wake Up
 * Au Lait: Gabu, gabu, gabu
 * Sparking: Garulu, Basshaa, Dogga
 * Decade Lockseed (ディケイドロックシード): By channeling the Decade Lockseed into the Heisei Rider Lockseed, Kamen Rider Fifteen can transform into Decade Arms, equipped with the Ride Booker. It is later used in Ganbarizing trading card game. The core image depicts the Decadriver while the lid backside image depicts the Kamen Ride: Decade Rider Card. Gaim and Kurokage-styled Lockseed in the toyline.
 * Transformation: Decade Arms! Hakaisha on the Road!
 * Squash: Final Attack Ride: D-D-D-Decade
 * Au Lait: Kamen Ride: Decade
 * Sparking: Final Form Ride: D-D-D-Decade
 * Joker Lockseed (ジョーカーロックシード): The core image depicts the Lost Driver while the lid backside image depicts the Joker Memory. Ryugen-styled Lockseed.
 * Transformation: Joker Arms! Joker, Kirifuda, Sei-ya Ha!
 * Squash: Maximum Drive, Ikuze
 * Au Lait: Rider Punch
 * Sparking: Rider Kick
 * OOO Tajadol Combo Lockseed (オーズタジャドルコンボロックシード): The core image depicts the OOO Driver while the lid backside image depicts Ankh's three Core Medals: Taka, Kujaku, and Condor. Baron and Gridon-styled Lockseed.
 * Transformation: OOO Arms! Ta~Ja, Ta~Ja~Dol!
 * Squash: Taka Squash
 * Au Lait: Kujaku Au Lait
 * Sparking: Condor Sparking
 * Meteor Lockseed (メテオロックシード): The core image depicts the Meteor Driver while the lid backside image depicts the Meteor Switch. Ryugen-styled Lockseed.
 * Transformation: Meteor Arms! Hwacha, Ha-Ha-Ha!
 * Squash: Meteor Limit Break
 * Au Lait: Hwacha
 * Sparking: Mars, Saturn, Jupiter
 * Beast Lockseed (ビーストロックシード): The core image depicts the Beast Driver while the lid backside image depicts the Beast Ring. Bravo and Knuckle-styled Lockseed.
 * Transformation: Beast Arms! Mister Mayonnaise!
 * Squash: Saber Strike
 * Au Lait: Gochisō
 * Sparking: Kick Strike
 * Gaim Lockseed (鎧武ロックシード): By channeling the Gaim Lockseed into the Heisei Rider Lockseed, Kamen Rider Fifteen can transform into Gaim Arms, equipped with the Daidaimaru as his Arms Weapon and the Musou Saber as his side weapon. Gaim and Kurokage-styled Lockseed in the toyline. It was first released in the toyline as a gift for moviegoers who have purchased tickets for the Gaim movie as the Movie Special Clear Version (劇場スペシャルクリアVer.).
 * Transformation: Gaim Arms! Fruits Yoroi Musha on Parade!
 * Squash: TBA
 * Au Lait: TBA
 * Sparking: TBA

Portrayal
The voice of the Lockseeds, as well as the Sengoku Driver, Musou Saber and DJ Gun, is provided by Seiji Hiratoko (平床 政治). The Energy Lockseeds, as well as the Genesis Driver and the Sonic Arrow, is provided by Shin-ichiro Miki (三木 眞一郎).

Conception
An interview with Kamen Rider Gaim producer Naomi Takebe in Hyper Hobby revealed the inspiration for the Lockseeds arising in early design meetings, with the sentences “Opening a new world” and “Unlocking potential” in mind. After some research it was decided that locks were the best choice, being something that has never been used in Kamen Rider. This decision was made at a very early point, with Takabe noting that they had no idea what the story was even going to be like then.

Non-shown sounds

 * Lockseed: "You Lose..." "Rank Up!"
 * Energy Lockseed: "Energy Standby.", "Energy Shutdown.", "System Start."
 * Legend Rider Lockseed: "Legend Rider Battle Start!" "(Rider) win!", "Try again!".