Go Shijima

"Let's... Transform!"

- Go's transformation call as Mach

"Tracking... extermination... both done at mach speed! Kamen Rider... Mach!"

- Mach's roll call

Go Shijima (詩島 剛) is Kiriko Shijima's younger brother and freelance photographer who utilizes Signal Bikes to transform into Kamen Rider Mach (仮面ライダーマッハ), as well as Kamen Rider Drive's Shift Cars for additional power. He is also called The White Kamen Rider (白い仮面ライダー) by Heart. He had been stationed in America, but returned to Japan to aid with the emerging Roidmude crisis.

Past
Sometime ago, Go and Kiriko lost their parents, with what's left of their father's memorial under a tree. Since Kiriko is the only family member left for him, Go deeply cares for her as much as Kiriko does for him.

He left Japan and resided in America, where Harley Hendrickson, Krim Steinbelt's mentor recruited him to test the Mach System he made. During his days in America, he met one of Krim's Shift Car, Amazing Circus, even encountered two Roidmude siblings, Gunman and 018 as he tried to take them down along with their Slowdown syndicate. He chased them to Japan, at the same time abandoned his training.

Return to Japan
Mach is first seen visiting the Drive Pit on his own, speaking to Mr Belt. Later, when his older sister gets attacked by an evolved Volt Roidmude, he counter attacks him, leaving shortly after Shinnosuke comes to help her.

Go made his first introduction in his civilian form in front of Shinnosuke, who was investigating a Heavy Acceleration in a landshark's house. He challenged the latter in a competition to find the culprit first before disappearing. Despite Shinnosuke and Genpachiro found the culprit, Naoki but Go Shijima appeared and reveal the truth: Naoki is the culprit but the Roidmude they face earlier was a different person. He called Kiriko as she and Drive watched him defeated Gunman easily. Once the battle was over, Kiriko and Mr. Belt introduced Shinnosuke to Go, learning that he is Kiriko's younger brother, much to Shinnosuke's shock.

When three robbers called the Slowdown Gang announce their robbery on the internet with their Slowdown Wristbands from Gunman and 018, Genpachiro assembled a team of SWAT and the Special Investigation Unit members went into action. However, while the robbers were on their way, Go as Mach created his own Heavy Acceleration and interrogated the robbers before destroying their wristbands. Using that information, he infiltrated the Roidmude siblings but got himself caught along with Mashin Chaser until Shinnosuke, Kiriko and his Signal Bikes came to rescue. He transformed into Mach and destroyed the Roidmude siblings with their Cores. Shinnosuke finally understood Go's personality and accepted the term "big brother" given to him by Go.

The Ride Crosser & revelation of Proto-Drive's Fate
Shinnosuke and Go receive jobs to guard a model who is bullied by a Roidmude who calls a truce with the stalker of the model. During the job, Chase intervenes but with his non usual emotions for his sake to search for his lost memory. Soon, Chase, Shinnosuke, Go, and Kiriko are shocked to learn the truth of Chase being the first Kamen Rider Drive after Chase is shocked to learn that his machine is able to combine with Go's machine out of his will. This truth also gives Chase more shock. Soon, after continuing the case, Shinnosuke become hesitant to defeat Chase after he was rebooted by Medic.

Marriage scams, Type Dead Heat, & Confrontation with the Reaper
When investigating marriage scam incidents and battling Voice Roidmude and his minions, Shinnosuke finds Go beaten by a newly healed Heart. Having no choice, he forced himself to use the unfinished Shift Deadheat and defeated Heart along with killing two of Voice's lackeys. With the Drive System gone haywire, Drive pleads with Go to stop him.

Later, while battling against the Voice Roidmude, Chase arrives to cover the latter's escape. Their battle comes to a draw when their Mach Arabull and Chaser Bat Rider Kicks collide.

During Drive & Mach's confrontation with the Judge Roidmude, Mashin Chaser appears and saves Judge. He then triggered the Ride Crosser combination on his own and resorted to eliminate the Riders. However, Tridoron arrives, allowing Drive to forcibly separate the Ride Crosser. Chase later returned to aid the Judge Roidmude but is intercepted by Go, who transforms into Mach. Though Chase initially gains the upper hand, Mach overpowers him as Deadheat Mach. Chase attempts to activate the Ride Crosser combination but to no avail, as Mach did not bring his Ride Macher along with him.

Super Hero Taisen GP: Kamen Rider 3
to be added

Personality
Go has a very impulsive and outgoing personality, whose hyperactivity may have worsened during his time in America. He is also very intelligent, which coupled with his robust physique, makes him a very capable detective. He is also pretty competitive, as seen with him challenging Shinnosuke to find and finish Gunman.

He has a flair for drama and is also quite the jester. Despite being entirely capable of subtlety, he prefers to make his entrance in a proud, flashy manner, going so far as to call his sister to his debut battle in Japan, just so that she can witness how cool he is. These traits ultimately resulted in him liking to rush into danger.

Go has a catchphrase that goes, "Tracking, extermination, both done at Mach speed! Kamen Rider Mach!" (追跡、撲滅、いずれもマッハ！仮面ライダーマッハ！)

In his battles with the Roidmudes, he likes to repeat his introduction of himself whether he starts fighting, even though he has said it in Episode 12 already, presuming to show off the coolness of himself. However, as shown in Episode 14, in his first fight with Roidmude 096, he is so determined to finish his introduction that he gives the Roidmude a chance to attack him, and even escaping. In his next encounter with him and Roidmude 069, he skipped it and goes straight to the fighting part. He fixed this problem afterwards in future episodes by saying it really fast.

For all of his bluster, however, Go is also a realist, ready to use any means to defeat his enemy, even considered himself much of a monster as the ones they fight due to the fact that both the Kamen Riders and the Roidmudes use Core Driviars as the source of their powers.

He does have a serious side, especially when it is to protect his sister from dangers and harms. He has a big hatred to the Roidmudes, even Chase. He is also annoyed to see his sister still finding a way to save Chase, even though he was the Kamen Rider that saved her life.

Powers and Abilities

 * Peak Human Physicality
 * He has a very athletic physique - a trait he shares with his sister. He easily demonstrates acrobatics way above that of average human's, shown to be able to somersault over tall walls, hand-standing for minutes on end, jumping from a tall tower to a roof over a great distance, then landing safely on his bike.


 * 4th Wall Awareness
 * Currently, he can comically see and interact with Shinnosuke's imaginations, which are supposed to be seen by the viewers only. He is also currently the only one to do so.

Family

 * Kiriko Shijima - older sister
 * Sukimo Shijima - late relative

Forms
Some of Kamen Rider Mach's Signal Bikes alter the suit based on a certain attribute, whereas other Signal Bikes arm him with a certain element or weapon, by changing the Kourin Signal (コウリンシグナル) on his right shoulder for a Signal Exchange (シグナル交換). These two types of Signal Bikes can be used in conjunction with each other. Mach can also use Kamen Rider Drive's Shift Cars for the same effect through a Tire Exchange (タイヤ交換).

By hitting the Boost Igniter on the Mach Driver Honoh between one and four times, Mach can activate the special ability of a Signal Bike or Shift Car currently placed within the Driver. After raising the Signal Landing Panel, pressing the Boost Igniter, and pushing the Signal Landing Panel back down, Mach can unleash a Full Throttle (フルスロットル) finishing move.

Kamen Rider Mach's ending theme is entitled "Full Throttle". {{#tag:tabber| Mach = {{#tag:tabber| Default= Mach {{Quote|Signal Bike! Rider: Mach! (Groovy music)|Transformation announcement|Kamen Rider Drive}} Ability Perimeters: Accessed through the Signal Mach Bike, Mach's default motorbike-based form bears the {{nihongo|Signa Kourin|シグナコウリン|Shiguna Kōrin}}. Like Drive, Mach is able to create intense Heavy Acceleration distortions through verbal command.
 * Height: 205.5 cm.
 * Weight: 96.6 kg.
 * Punching power: 9.7 t.
 * Kicking power: 16.7 t.
 * Maximum jump height: 40.3 m.
 * Maximum running speed: 100 m. per 2.4 sec.

Since Mach's {{nihongo|V-Helm|∨-ヘルム|Buī Herumu}} helmet is based on a motorcycle helmet, the {{nihongo|Innovate Viser|イノベイトバイザー|Inobeito Baizā}} part of it can be raised up to reveal the {{nihongo|Shutter Face Guard|シャッターフェイスガード|Shattā Feisu Gādo}}, which lets out the pent up energy that Mach builds up during extended use, as well as being the manual off-switch to his Heavy Acceleration abilities.

With this form, Mach has serious power, punching and kicking harder than Drive's Type Technic Braver and Gravity, as well as Type Wild (though not Types Wild Dump and Wild Wrecker), can jump higher than Drive, and is almost as fast as Type Speed when Drive goes at full speed. Mach also has the ability to hover in the air for a short period of time by jettisoning power through well-hidden vents along his thighs. By hitting the Boost Igniter on his Driver four times, he is able to summon the Zenrin Shooter. If he does so while having the Zenrin Shooter in hand, Mach is able to accelerate to incredible running speeds.

Mach's Full Throttle finisher is the {{nihongo|Kick Macher|キックマッハー|Kikku Mahhā}}, where he gathers energy into his feet, then runs forward and jumps up. Afterwards, Mach somersaults like a buzzsaw, spinning until he reaches the target. Just before he makes contact, Mach extends a foot out to strike the target.

Appearances: Episodes 17, 19 {{-}}}}

Equipment

 * NEX-Core Driviars - Mach's power sources, which is a new version of the Core Driviars

Devices

 * Mach Driver Honoh - Transformation device
 * Signal Bikes - Gives access to Mach's forms and powers, depending on which bike is used
 * Shift Cars - Borrowed/taken from Drive to give Mach additional forms and powers

Weapons

 * Zenrin Shooter - Mach's primary weapon
 * Tire Specific Items - Weapons that come from certain Shift Cars (borrowed from Drive):
 * Rumble Smasher - Mach Arabull's drill-based item via the Kourin Signal Arabull

Vehicles

 * Ride Macher - Mach's Rider Machine
 * Ride Crosser - Ride Macher combined with the Ride Chaser
 * Ride Booster Red - Mach's Rider Machine

Portrayal
Go Shijima is portrayed by Yuu Inaba (稲葉 友).

As Kamen Rider Mach, his suit actor is Jun Watanabe (渡辺 淳). This is his second time suit acting for the Secondary Riders. The first was Kamen Rider Beast.