Makoto Hikawa

Makoto Hikawa (氷川 誠) is Kamen Rider G3 (仮面ライダーG3), the secondary hero used in the 2001 Kamen Rider series, Kamen Rider Agito, using technology in place of the mystic nature of Agito and organic nature of Gills. He's the first Rider to appear in the series. G3 was based on The Unidentified Lifeform No. 4 or Kamen Rider Kuuga.

History
He is a cop chosen to use the G3 System to battle the Lords, whom his superiors labeled as "the Unknown", and keep them from murdering people, Hikawa is an earnest, straight forward, and honorable man, though slightly naive and clumsy. Because he was a regular human, the Lords usually ignore him; but sometimes are surprised that a normal human being can wield such power.

One day, while on patrol, Hikawa witnessed the Akatsuki being held by the El of the Sea, taking a boat to investigate and save all but one of its passengers. Because of his heroic role in the incident, which showed his skills in a crisis, Hikawa was assigned to the G3 Unit.

Hikawa took the G3 System on its first run during the Jaguar Lord case, resulting with a feral Agito damaging the Suit. But overtime, while aiding Agito, Hikawa managed to piece together the nature of the Lords' victims. But when Hojo took his place as the G3's user, believing he got the position for being a hero, Hikawa got transferred to criminal investigations for a short while until he proved his skills by anticipating the Zebra Lords' next target, resuming his role in the G3 squad while decking Hojo when he attempted to capture Agito.

Soon after stronger Unknown, and Hojo's Victory One System, made themselves known, Hikawa was given the upgraded and G3-X Suit that is better suited for Unknown Combat and "perfect" in every way. However, the perfection was the flaw as the AI would momentarily take over an impure wearer, as seen when the suit acted on Hikawa's deepest desires when it took control. After consulting her mentor, Ozawa installs a special inhibitor chip to regress the AI.

Hikawa finally learned the true identity of Agito in episode 39 when he de-transformed in front of him after being knocked by Another Agito, and Hikawa was visibly shocked to learn Agito was Shouichi, much to his disbelief this makes him lose his cool (even getting in a short argument with Ozawa and Omuro) and expresses disappointment at the revelation and can't accept it at first because the true identity of Agito he admired was far from what he expected. This caused Hikawa to be hesitant on meeting Shouichi. However, their combined effort to defeat Skelos Glaucus caused them to continue their usual relationship, And Hikawa become more respectful towards Shouichi.

After Hojo took over the G3 Unit, Hikawa was transferred back to Kagaki-ken. However, Hikawa couldn't leave just yet, so he and Ozawa take back the G3 Unit. Donning the G3-X one final time, Hikawa aids Agito and Gills in finishing off the Lords for good. By the next year, Hikawa leaves the G3 Unit and returns to being a normal officer of the law.

Kamen Rider Agito: Heaven's Door
There were a lot of killings happening with the recent one being a nude woman found impaled on the top of Tokyo Tower. An Agito was sighted at the scene. While Hikawa was investigating, the Agito and a dog-type Unknown attacked him. Though Exceed Gills and Another Agito appeared to his aid but they were easily getting defeated. Luckily Agito/Shouichi Tsugami finally shown up. The real identity of this Agito was Shouichi Maguichi, who was crazed after being blamed for cheating on the programs for using a hidden camera during his childhood. Wanting to cure his sick mind he worshipped the Dog Orphnoch/Dog Lord and was told to feed on the despair of the public. After Agito and the others killed the Dog Lord/Orphnoch, Maguichi/Agito transformed into Mirage Agito out of rage. In a fight with Kamen Riders Agito and Gills, despite gaining the upper hand he was defeated by the strategized use of the Shining Caliber and a Shining Rider Kick. Maguichi was then arrested and was given an unspecified treatment.

Kamen Rider Decade
Hikawa, as G3-X, appeared in episode 1 (in Natsumi Hikari's dream) and episode 31 (as the realization of Natsumi's dream) of Kamen Rider Decade. In the second version of episode 31, aired during the series' rerun, after a initial confront between the 9 Heisei Riders and Decade, more Riders appear, and G3-X was among them. With the Guard Chaser, he quickly catches up with Agito, who boards his Machine Tornador. However, both are seemingly taken out during the Rider War.

OOO, Den-O, All Riders: Let's Go Kamen Riders

 * Kamen Rider G3-X returns in OOO, Den-O, All Riders: Let's Go Kamen Riders. He reappears alongside the other secondary Heisei era Riders, led by Kamen Rider Birth (Akira Date) during the final battle against the Great Leader of Shocker, to support the other Riders, including Agito.
 * When all the Riders go to their vehicle for a combined attack against the Great Leader, G3-X boards Agito's Machine Tornador in Slider Mode, holding his GX-05 “Cerberus” to provide fire support for Agito's attack.

Kamen Rider × Super Sentai: Super Hero Taisen
G3 was among the Kamen Rider team led by Kamen Rider Knight, Kamen Rider Black, Kamen Rider Zolda, Kamen Rider Hibiki and Kamen Rider Gatack defeated by Gokai Red. He did not reappear during the final battle.

Kamen Rider Agito & Kuuga Wild Battle
G3 appears with Agito and Gills in Kamen Rider Agito & Kuuga Wild Battle.

Kamen Rider: Battride War
Kamen Rider G3-X appears as a Second Rider in the video game Kamen Rider: Battride War.

Equipment

 * Guard Acceler: An electromagnetic jutte, stored on left leg, hand-carried or inserted into Guard Chaser throttle port in use
 * GM-01 Scorpion: A modular magnum pistol, stored on right hip, hand-carried in use. Compatible with the GG-02 Salamander module attachment
 * GG-02 Salamander: A grenade launcher module that could be attached to barrel of the GM-01 Scorpion.
 * GS-03 Destroyer: A high-frequency sword, mounted on left arm when in use.
 * GA-04 Anthares: A wire-anchor hook, mounted on left arm when in use.
 * GX-05 Cerberus: A multi-mode Gatling gun, hand-carried in use; modular attachment include GM-01 “Scorpion” and tracker scope; exclusive only to the G3-X
 * GK-06 Unicorn: An electromagnetic combat knife, stored left arm, hand carried in use.
 * Guard Chaser: G3's motorcycle that was served as the successor to the TryChaser series of motorcycles, which stores his primary weapons, based upon the designs of Kuuga's TryGouram/BeatGouram bikes.
 * G-Trailer: G3's base of operations which was operated by Ozawa and Omuro.

Portrayal
Makoto Hikawa is portrayed by Jun Kaname (要　潤). As Kamen Rider G3/G3-X, his suit actor was Makoto Itō (伊藤 慎).