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 were originally fruits that grow on trees in the Helheim Forest.

The Inves love Lockseeds and Helheim's fruits, regarding them as their favorite food. However, if an Inves consumes a Lockseed, it assumes its Advanced State, and if it consumes yet another Lockseed, then that Inves will evolve into its Strengthened Form.

In Inves Games, people use Lockseeds to summon Inves to do battle. When a person wearing a Sengoku/Genesis Driver picks a Helheim fruit, they will quickly convert into Lockseeds. When an Inves Game starts, the Lockseeds say "Battle, Start!". After an Inves Game, these Lockseeds say "You Win" or "You Lose" depending on the result of the battle. After a victory, the toy Lockseed says "Rank Up!", which was not used in the show.

In the Hyper Battle DVD, the Riders' Lockseeds become rusted, preventing transformations and Inves summoning, however there are ways to to restore them, according to the Woman of the Beginning.

If an Armored Rider summons an Inves in a battle, then they will be fully materialized in the real world, however if a New 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 Helheim fruits, regarding them as their favorite food. Even after a fruit's conversion into a Lockseed, they are still able to devour them, swallowing them whole and gaining the full power contained within.

Helheim's Fruits


The fruit of Helheim (ヘルヘイムの果実), are the original forms of Lockseeds that grow in the Helheim Forest. They normally look like fruit, however if anyone wearing a Sengoku Driver picks them they will turn into Lockseeds. The Inves love both types, 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 to be tempted to eat the fruits, and it takes either outside help or a high level of mental endurance to make sure they don't eat it.

When a living being does eat a Helheim fruit, 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, into an Inves in a Berserker State, where the Yggdrasill higher-ups then calls them "Category H" Inves; Inves that were formerly human:

However, it can be used as an alternative food source if a person holding a Lockseed inserts it in a Sengoku Driver without transforming, allowing the wearer to gain nourishment from Lockseeds without the risk of mutation.

Other kinds of kaijin like a non-humanoid type, like Beast Chimera, can survive eating the fruit without any side effects, while an intelligent, humanoid kaijin type like Overlord Demushu has an effect of entering their evolved states.

Classes
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-Class Lockseeds are normally unbreakable (though they can be devoured by an Inves or destroyed by powerful attacks). Given their powerful nature, they are useful for both transformation as an Armored Rider or to summon a high-class Inves. One drawback is that the summoned Inves is in its Advanced 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 Strengthened State (強化体).

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 (with the exception of Kurokage Shin and Gaim Yami). 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 nature-converted Lockseeds (except skilled users of the Suika Lockseed). Like A-Classed Lockseeds, they are normally unbreakable, though Rosyuo was able to easily dissolve Sid's Cherry Energy Lockseed with a force-based attack.

Other Lockseeds
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 low-level Lockseed, being used by Mitsuzane Kureshima, 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. When not used for an Inves Game, this Lockseed can act like a food supply when attached 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.

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 is unknown if Bravo still has one.
 * 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 Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle, but was wrecked by Bujin Gaim in Lotus Position.
 * 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.Unlike regular lockseeds these ones have no codes or classes.

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 the fusion between the transformation items belonging to four of the most recently defeated Bujin Riders (the Joker Memory, a Taka Medal, the Rocket Astroswitch, and the Flame Style Wizard Ring) and Helheim Fruit. 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.

When transforming into these Rider Arms, it may also change the user's personality into those of the Rider's, as Kamen Rider Zangetsu almost lost grip of his personality while in Fourze Arms. The same case can go for when the Showa Lockseed or the Heisei Lockseed is used, as Kamen Rider Gaim announced out "Rider Kick" when he did his finishing attack in 1 Arms, when he normally doesn't say anything when doing a finishing attack.

In addition, Legend Rider Lockseeds based on non-main forms will announce its form name when activated/unlocked instead of its Rider name and usually has the same style as its main form Legend Rider Lockseed with a few exceptions (Ryuki/Ryuki Survive, Faiz/Faiz Blaster, and Fourze/Fourze Cosmic).

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 (マキシマムドライブ)
 * Au Lait: Cyclone (サイクロン)
 * Sparking: Joker (ジョーカー)
 * 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 (スキャニングチャージ)
 * Au Lait: Seiya (セイヤ)
 * Sparking: Combo Change (コンボェンジ)
 * 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 different States form-exclusive weapons like Elek Module Billy the Rod and Cosmic Module Barizun Sword. The core image depicts the Fourze Driver while the lid backside image depicts the Rocket Switch. Strangely a Gaim/Kurokage/Bujin Gaim/Kamuro-styled Lockseed in the toyline.
 * Squash: Limit Break (リミットブレイク)
 * Au Lait: Drill On (ドリルン)
 * Sparking: Rocket On (ロケットン)
 * 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/Bujin Gaim/Kamuro-styled Lockseed in the toyline.
 * Squash: Chōīne, Saikō (チョーイイネ, サイコー)
 * Au Lait: Special, Please (スペシャル, プリーズ)
 * Sparking: Slash Strike (スラッシュストライク)
 * 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 Rider 1. Only used for the Gaim/Kurokage/Bujin Gaim/Kamuro-styled 1 Arms in the movie.
 * Squash: (Rider) Squash ((ライダー) スカッシュ)
 * Au Lait: (Rider) Au Lait ((ライダー) オーレ)
 * Sparking: (Rider) Sparking ((ライダー) スパーキング)
 * 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 colorful lights while the lid backside image depicts the symbol of Gaim. Only used for the Gaim/Kurokage/Bujin Gaim/Kamuro-styled Decade, Fourze, Wizard, and Gaim Arms in the movie.
 * Squash: (Rider) Squash ((ライダー) スカッシュ)
 * Au Lait: (Rider) Au Lait ((ライダー) オーレ)
 * Sparking: (Rider) Sparking ((ライダー) スパーキング)
 * Drive Lockseed (ドライブロックシード): Allows Kamen Rider Gaim to transform into Drive Arms, equipped with the Handle-Ken as his Arms Weapon and his helmet's crest changed into a stylized version of Drive's logo. Gaim is also equipped with the Door-Ju in the Arms Change toyline. Unlike other Legend Rider Lockseeds, the Drive Lockseed's surface depicts Drive in Type Speed with his Type Speed Tire instead of a silver circle. The core image depicts the Drive Driver while the lid backside image depicts the Type Speed Shift Car. Also a Kurokage/Bujin Gaim/Kamuro-styled Lockseed in the toyline.
 * Squash: Hissatsu! Ah, Full Throttle! (必殺! あ、フルスロットル!)
 * Au Lait: Tridoron! Iyo, Itchokusen! (トライドロン！　いよっ、一直線！)
 * Sparking: Tire! Hngg, Ko~ukan! (タイヤ！ん、コ～ウカン！)

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.