Kugai Kudo

is the main antagonist of Gaim Gaiden: Kamen Rider Duke. He was a researcher of Yggdrasill Corporation who transformed into .
==History==
===Gaim Gaiden: Kamen Rider Duke===
Kugai was the predecessor of Ryoma Sengoku in the Yggdrasill Laboratory for Lockseeds. He was ordered by Amagi Kureshima to test out Ryoma's first functional Lockseed. Kugai was killed during the test and his body was destroyed.
Kugai managed to enter Limbo, aware of the world and managed to gain a physical appearance due to the Sengoku Driver he was equipped with. Kugai also managed to keep the Zakuro Lockseed after his death and facilitated his own mass production laboratory with data stolen from Yggdrasill, creating blank pomegranate Zakuro Lockseeds that will explode upon activation.
Intentionally making his actions aware to Yggdrasill, Kugai taunts Ryoma as he proclaims that he can guide him to the path of God alongside him, testing him to overcome his labors. Due to Sid's interference to stop the brainwashed members of Black Bodhi and acquiring one of the blank Lockseeds, Ryoma and Takatora track his location, discovering his artificial Helheim factory.
Kugai demonstrates to Ryoma that he is the final task he must overcome, utilizing a Genesis Core Unit as an extension of his Sengoku Driver with his Zakuro Lockseed modified to summon a variant of the Sonic Arrow called the Saver Arrow. Initially gaining the upperhand, fighting Duke and Zangetsu as he can overpower them one on one, he is defeated by their combined efforts.
Days later, Ryoma finishes his Genesis Driver with the intent to destroy Kugai for good. Ryoma taunts Kugai saying that he is third rate and cannot be considered a potential person to acquire Godhood. During his second encounter, Ryoma damages his Sengoku Driver, causing Kugai to wail in pain as the Driver is what maintains his physical form. Kugai dies when Ryoma shoots his Sengoku Driver directly.
===Gaim Gaiden: Kamen Rider Knuckle===
Sometime after or before, Kugai meets with Shura in a limbo, with Shura becoming an affiliate of the now-defunct Black Bodhi terrorist organization. Shura carries on Kugai's legacy, owning several Sengoku Drivers for himself and his fight club, and wishes to enact the Saver System, which will wipe out any unwanted humans who are not worthy. 
==Personality==
Kugai is a man who carries himself around with a mysterious aura, disappearing as quickly as he arrives. As of his death, he developed a God Complex, desiring to become God (or at least a figure like Him) to save the world.
Despite said claims, his plan and strategies are nothing short of horrific and disturbing. From forming a cult of brainwashed suicide bombers, to desiring to use the Scalar System on a worldwide scale, Kugai is an extremist willing to go any lengths for his personal ideals.
==Powers and Abilities==
* Teleportation: Being deceased and having his Sengoku Driver to gain his physical appearance, Kugai can teleport at will.
==Creations==
Using the powers of Forbidden Fruit in his possession, Kugai created copies of said Kamen Riders.
Duke Profile.png|Kamen Rider Duke
KRGa-Kurokagematsubokkuri troopers.png|Kamen Rider Kurokage
==Arms==
Like his fellow Lockseed-using Armored Riders, Kamen Rider Saver's forms are called . His Sengoku Driver plays Japanese horagai music and announces before every transformation, while his personal Lockseeds are styled with a mix of Japanese words and English words.
By pressing the Sengoku Driver's Cutting Blade down on the Lockseed after transforming from one to three times, Saver can activate one of three finishing moves based on his current Arms form: , , or .
==Equipment==
===Devices===
*Sengoku Driver - Transformation device
**Removable slots for additional Lockseeds:
***Genesis Core - Essential to access a Jimber Arms
*Lockseeds - Gives access to Saver's Arms changes, depending on which lock is used
===Weapons===
*Arms Weapons
**Saver Arrow - Saver Blood Zakuro Arms' personal weapon through the Blood Zakuro Lockseed
**Blood Daidaimaru - Saver Blood Zakuro Arms' personal weapon through the Blood Orange Lockseed
**Musou Saber - Jam's side weapon
**Sword Bringer - One of Mars Golden Arms' personal weapons
**Apple Reflecter - One of Mars Golden Arms' personal weapons
**Dark Daidaimaru - Jam Darkness Arms' personal weapon
**Yomimaru - Personal weapon of Maja Arms.
==Behind the Scenes==
===Etymology===
The katakana used in Kamen Rider Saver, , can be romanized as both Saver and Savior. The latter is mostly used in many localizations and translations and ties in better with the character of Kugai claiming himself to be a Messiah, with the Lockseed number on the Zakuro Lockseed being "LS-MESSIAH".
===Portrayal===
Kugai Kudo is portrayed by .Actor's name is credited on official website As Kamen Rider Saver, his suit actor is .
===Concept Art===
Concept art of Saver shows that the silver armor parts on Saver's Ride Wear were originally intended to be painted red in color. However, they remained as silver on the finalized suit.
==Notes==
*Saver's suit contains the following repaints/retools: 
**Saver's left shoulder pad is from Kamen Rider Bujin Gaim's Blood Orange Arms, while the right side is that from Armor Parts that are normally associated with the Ringo Arms.
**Saver's helmet is a recolored Kamen Rider Mars' helmet with additional "mummified" bandages on its mouthpiece.
**Saver's armor part is a recolored version of Ringo Arms' armor part (besides the Blood Orange Shoulder-pad).
*Saver's standby sound is never heard in the film, but was revealed through the release of the CSM Sengoku Driver Kamen Rider Saver Set.https://twitter.com/bandai_ridertoy/status/1371733801047519236
==Appearances==
* Kamen Rider Gaim
**Kamen Rider Gaim Gaiden
***Gaim Gaiden: Kamen Rider Duke
***Gaim Gaiden: Kamen Rider Knuckle
**Novel: Kamen Rider Gaim
==External Links==
*Kamen Rider Zukan page on Kugai Kudo.
*Kamen Rider Zukan page on Kamen Rider Saver Blood Zakuro Arms.
==Navigation==
ru:Кугай Кудо
Category:Gaim Characters
Category:Gaim Riders
Category:Villains
Category:Deceased
Category:Movie-exclusive Villains
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Category:Movie Riders
Category:Dark Riders