Go Shijima

Go Shijima (詩島 剛) is Kiriko Shijima's younger brother, the son of the Roidmudes' creator Professor Banno, and a 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 had been stationed in America, but returned to Japan to aid with the emerging Roidmude crisis. Go is prejudiced towards the Roidmudes and goes to great lengths to destroy all Roidmudes, even the ones that protect humanity and the ones that desire to live in peace.

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 Cars, Amazing Circus, and 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, while at the same time abandoning his training.

Some time in the past, he discovered about his father's fate of being killed by his own creations, the Roidmudes. Now most of the Roidmudes are currently targeting him for being a son to the Roidmude creator, he also now sees them as "evil" for what they did to his father, planning to avenge his father's death and destroy what his late-father left behind. However, knowing the Roidmudes are after those who are related to his father, he has to avoid his sister from becoming their target without her knowing their ties with their father.

Return to Japan
Go's first appearance is during the The Challenge from Lupin. He appears to the damaged Mr. Belt, asking rhetorically if Krim has already given up. Go would then watch from the sidelines, refusing to aid his sister and Drive against Lupin.

As Mach, Go would also stay in the sidelines refusing to appear, saving his sister during "Who Can Prevent the Dark Christmas Eve?", and allowing Shinnosuke to defeat the revived Volt Roidmude.

Go would eventually introduce himself in person to Shinnosuke, competing with Shinnosuke during a case involving a landshark. Despite having a rocky start with the Special Investigation Unit as Go is extremely competitive, Go becomes Mach and eventually comes to work together with Shinnosuke to stop the Roidmudes.

Go eventually learns that his Ride Crosser and Chase's Ride Chaser are able to merge into a single unit and alongside Shinnosuke and Kiriko, they learn that Chase was the original Kamen Rider during Global Freeze. However, Chase was later rebooted with alterations made to him.



After the Shift Car Dead Heat was in an operable state and used by Shinnosuke, Go was forced to stop Shinnosuke as the Dead Heat form malfunctions. After clashing with Chase once more using Dead Heat for himself, he manages to defeat him causing him to retreat.

While Drive fights Chase in a later encounter, Go, encounters both Heart and Medic using Shift Dead Heat. However after Chase utilizes a "Super Heavy Acceleration", Go sends away Shift Dead Heat to aid Shinnosuke, reverting Go to using the substantially weaker Shift Mach.

Later, Chase, under the reprogramming by Medic kidnaps Kiriko. Though Kiriko is returned to Go by Chase as his reprogramming becomes undone, he requests that Go relays a message to the current Drive so that they may have one final showdown. However, Chase was later reprogrammed again.

After Chase's "demise" to Shinnosuke, Go would become the primary user of Shift Dead Heat while Shinnosuke would utilize Shift Formula, even learning to overcome its maxed out, "Dead Zone" state with pure willpower.

Sometime after Chase was fully healed, Kiriko announced to everyone in the Drive Pit that Chase was in fact alive, causing Go grief as he has a vendetta against Roidmudes. Things would later become worse when Chase attacks Shinnosuke, injuring his arm and rendering him unable to become Drive, blaming Kiriko for blindly believing in Chase. However, Chase with a redeemed heart, would later save Kiriko from falling to her death as Go was powerless due to Heavy Acceleration and became Kamen Rider Chaser. Go, in disbelief that a lowly Roidmude is now taking the name of a Kamen Rider, despite being the original Kamen Rider, would later clash with him when he becomes manipulated by Roidmude 050. Go would later reveal his secret to Shinnosuke, that he is actually the son of the late Professor Banno, the creator of the Roidmudes, and that it is his responsibility to stop all Roidmudes and to atone for his father's sins.

In an encounter with Brain and having his memories "altered" by Roidmude 001, Go, actually unaffected, pretends to switch over and aids the Roidmude against his allies. However using the psuedonym Mr. X, Go sends information to the Special Investigation Unit. However, with the death of Shinnosuke at the hands of Roidmude 001, Chase risks his life to attempt to save Go from his "brainwashing". In this process, Go blows his cover and steals Brain's tablet, which contains the information on Roidmudes and contains the essence of the late Professor Banno. Go would also aid in the completion of Shift Tridoron via notes given to his sister to revive Shinnosuke. Later that day, Go looks at the tablet and requests to see Professor Banno.

Shuriken Sentai Ninninger Vs. Kamen Rider Drive Spring Vacation Combining SpeciaI
In the movie prequel special, Go is seen taking a picture of an unknown phenomenon that appears in the sky until it disappeared after a few minutes. During his second time finding the phenomena and taking more pictures of it before it disappeared again, he encountered Kamen Rider 3, who attacks Go as a test drive of his abilities only to be spared and being told by the Rider that Go wasn't the one he was after, but someone else. He shows up to rescue Shinnosuke, Kiriko and a Ninninger member, Takaharu from Hiruchameleon's attack, and also telling them about Kamen Rider 3's existence. He, Kiriko, Shinnosuke, and Takaharu found the mastermind behind phenomena, Shocker, whose Great Leader spoke with Doctor D/Roidmude 089 through the android's belt. Gou aided his partner and the Ninningers in defeating the Shocker forces. However, Hiruchameleon escaped. After the battle and the Ninninger's departure, Go is still suspicious about who Rider 3 was and what's he up to.

Super Hero Taisen GP: Kamen Rider 3
After Shocker alters the timeline by sending Kamen Rider 3 back to 1973 to defeat the original Double Riders, Go has a job on Super Regeneration System to create something called "Rider Town", until he met Takumi Inui. After his encounter with Takumi, he joined Yuto Sakurai, and the other Rider resistances whose on a run from Shocker. Although, he, Yuto and Shinnosuke also helped out Kyoichiro, whose on a run from both Shocker and Rider resistance recently. He and Yuto later meets Sakuya Tachibana, and one of 3 other main Royal Card Riders, whereas Mutsuki Kamijou becomes an young evil leader of some Shocker's branch, while Kazuma Kenzaki is held as a prisoner. At some point, he fights against Kamen Riders Leangle & Chalice. Go later then participates in the final battle against the Great Leader in an effort to restore the timeline, but overwhelmed by multiple kaijin and killed. He stays dead even with the timeline fixed, with Kiriko and Shinnosuke mourning for his passing.

D-Video Special: Kamen Rider 4
The timeline is altered once again after the events of Super Hero Taisen GP, where time itself is stuck in a strange loop on April 4, 2015. Go is repeatedly killed over and and over again as Shinnosuke attempts to correct the timeline. His death is finally undone when Shinnosuke sacrifices himself to ensure Go's survival. It's later revealed that Takumi is the cause of the time loop that allowed Kamen Rider 4 to exist due to his strong wish not to lose any more people, and they are confronted by the Great Leader of Shocker himself, who has assumed Takumi's form. However, after defeating the Great Leader, Faiz sacrifices himself to prevent more time distortions from happening and destroying the History Modifying Machine, which reverts the timeline back to its original state.

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. A freelance cameraman himself, Go has a habit of picturing any nearby couples either intentionally or not.

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, terminating, 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. And also, he bears the pain of taking the responsibility of what Dr Banno, who in fact is also his father for the corruption of Roidmude.

He does have a serious side, especially when it is to protect his sister from danger. He has a big hatred to the Roidmudes that's near fanatical in belief, hating even Chase, despite the andriod's return to his normal heroic persona. His sense of justice seemed to have altered due to his time in America, having suggested that they should kill Taga when he fused with 007 into the Sword Roidmude, and came close in killing Reiko out of rage when she was the Seeker Roidmude when she manipulated him into a trap.

His hatred for Roidmudes is so great that he even went so far to say that Chase is just the 109th Roidmude, ignoring his past heroics as Protodrive or his return as Kamen Rider Chaser. In Episode 22, even when Chase temporarily got back to his original settings during the time he was brainwashed by Medic, he still doesn't budge, continuing his thoughts about all the Roidmudes are evil, unaware that it was all her plan to lure Drive out. However, he does show a little bit of sympathy to Roidmude 072 back in Episode 20, but those feelings were only temporary once.

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
 * During his debut, he could 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
 * Tenjuro Banno - father
 * Sukimo Shijima - mother
 * Sachiko Emoto

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".

Equipment

 * NEX-Core Driviars - Kamen Rider Mach's power source, an upgrade 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
 * Cure Quicker - Mach Naorl's first aid kit-based item via the Kourin Signal Naorl

Vehicles

 * Ride Macher - Mach's primary 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.