Go Shijima

"Let's Henshin!"

- Go's transformation call as Mach

"Searching... destroying... both done, at mach speed! Kamen Rider... Mach!"

- Go's introduction

Go Shijima (詩島 剛) is a freelance photographer and like Shinnosuke, he is the Kamen Rider stationed in America. Go utilizes Signal Bikes, similar to Shift Cars, to transform into Kamen Rider Mach (仮面ライダーマッハ). He returns to Japan to aid with the emerging Roidmude crisis.

He is also Kiriko Shijima's younger brother.

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

He left Japan and reside America, where Harley Hendrickson, Krim Steinbelt's mentor recruit 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, whom 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 introduce Shinnosuke to Go much to his shock, learning that he is Kiriko's younger brother.

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 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 dangers.

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 Ep.12 already, presuming to show off the coolness of himself. However, as shown in Ep.14, in his first fight with the mysterious black cloaked Roidmude, 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.

For all of his bluster, however, Go does have a serious side. Due to the fact that both the Kamen Riders and the Roidmudes use Core Driviars as the source of their powers, he considers himself just as much of a monster as the ones they fight.

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！)

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.
 * 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.
 * 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 Signal Bikes alter the suit based on a certain attribute, whereas other Signal Bikes arm Mach with a certain element or weapon, by changing the signal on Mach's suit for a Signal Exchange (シグナル交換). These two types of Signal Bikes can be used in conjunction with each other.

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

Vehicles

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

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.