Jonathan Marshall

Jonathan Marshall is Kamen Rider Barker. He uses the Acorn Lockseed.

Character History
to be added

Personality
Jonathan was the brains of the Sengoku Club, a calm-looking person and is a brilliant tactician, forming strategies of attack when the best means of winning are not available. Despite his confidence in strategy, he has no actual combat skills after becoming a Kamen Rider due to his inexperience. This is proven during his battles against Dragon Defender and Spike when he became a human shield for Pinecone. He is also a coward, hiding as Pinecone was being beaten by Spike and preferring sneaky tactics. He is not very confident about going against long-range weapon Kamen Riders like Dragon Defender and prefers to hide from gunfire. When everything is changed at the end of the Inves Game and a sudden appearance of the endless Inves come out of nowhere for the outbreak while seeing most of the Kamen Riders trying to sacrifice themselves to defend the city, Jonathan finally awakened his fighting spirit, overcoming his cowardliness. After completing his training, Jonathan rejoins the Feudal Club in defending the city against the Inves invasion.

Arms
Like his fellow Lockseed-using Armored Riders, Kamen Rider Barker's forms are called Modes while the armor is called Arms.

Pre-Arms
This form is briefly seen during Barker's transformation sequence, before the armor attaches. However, this form is completely vulnerable to any incoming attacks when shot at directly in the suit, rather than at the Arms that is descending down on the Rider.

Acorn
Ability Perimeters: Acorn Mode is Barker's default acorn-based armored Medieval Squire form. Accessed through the Acorn Lockseed, this form's Arms Weapon is the Acorn Hammer.
 * Height: 206 cm.
 * Weight: 119 kg.
 * Punching power: 8.9 t.
 * Kicking power: 9.2 t.
 * Maximum jump height: 22 m.
 * Maximum running speed: 100 m. per 6.5 sec.

In this form, Barker can throw punches stronger than both Armor Warrior in Pine Arms and Baron in Banana Arms, though his kicking power is far weaker then the aforementioned Riders. As for his jumping height and running speed, they are the same as Armor Warrior's in Pine Arms.

This Arms has three finishing attacks.
 * Barker Slam: After Barker activates his Sengoku Driver's Squash function, he spins at high speeds with the Barker Hammer held out. The spinning forms an acorn projection before Barker knocks the opponent with a high-velocity hammer slam.
 * Barker Strike: After Barker activates his Sengoku Driver's Au Lait function, he dives from above and strikes the enemy with the Acorn Hammer.
 * Barker Blast: After Barker activates his Sengoku Driver's Sparking function, he swings the Acorn Hammer, sending a pulse of energy at the target.

Other Arms
These Arms involve Lockseeds that are normally used by a different Armored Rider.

Giant Watermelon
Giant Watermelon Mode is Barker's colossal mecha-like watermelon-based armored Japanese Samurai form. Accessed through the Mecha Watermelon Lockseed (reserved for Armor Warrior), this form's Arms Weapon is currently unknown.

This form can interchange into three modes.
 * Walker Mode: Giant Watermelon's warrior mode, which equips Barker with its main weapon for combat.
 * Ball Mode: Giant Watermelon's watermelon mode, which encases Barker's entire body to use either for offensive/defensive purposes or as a mode of transportation.
 * Blaster Mode: Giant Watermelon's flight mode, which allows Barker to fire seed-like bullets from the fingertips.

Giant Watermelon Arms is the most massive Arms Change so far, and it shows by having the most monstrous punching and kicking power once in Walker Mode. Consequentially, it also has the worst jumping height in all of Rider history, and any Rider can practically outrun it. Though this is rendered moot thanks to Blaster Mode. Also, after a utilization, the Mecha Watermelon Lockseed's color becomes black, indicating that its energy is low and needs time to recharge back to its green color before it can be used again.

Pinecone
Pinecone Arms is Barker's pinecone-based armored Japanese Ashigaru form. Accessed through the Pinecone Lockseed, this form's Arms Weapon is the Ninjetti Staff.

Pinecone Arms is normally used by Kamen Rider Pinecone.

Walnut
Walnut Arms is Barker's walnut-based armored Medieval Squire form. Accessed through the Walnut Lockseed, this form's Arms Weapon is the Walnut Fists.

Walnut Arms is normally used by Kamen Rider Knuckleman.

Ride Wear
The Ride Wear is Pinecone's default form undersuit, which is briefly seen during Pinecone's transformation sequence before the Armor Part attaches or when he changes Arms. However, this form is completely vulnerable to any incoming attacks when shot at directly in the suit rather than at the Arms that is descending down on the Rider.

Unlike the original Kamen Riders, the Pinecone Troopers' Ride Wear isn't identifiable through their Sengoku Driver's Rider Indicator faceplate due to using mass-produced Sengoku Drivers. As a result, the Rider Indicator is blank. However, it can be replaced with extensions such as the Genesis Core or Ultra Joint.

Pinecone
Ability Perimeters: Pinecone Arms is Pinecone's default pinecone-based armored Japanese Ashigaru form. Accessed through the Pinecone Lockseed, this form's Arms Weapon is the Ninjeffi Staff.
 * Height: 203 cm.
 * Weight: 102 kg.
 * Punching power: 6.0 t.
 * Kicking power: 10.2 t.
 * Maximum jump height: 26 m.
 * Maximum running speed: 100 m. per 6.0 sec.

In this form, Pinecone's punching power is on par with that of Armor Warrior in Berry Arms, and can kick at the same power as Armor Warrior in all of his Arms. He can also jump a tiny bit less, as well as run a tad bit slower, than Armor Warrior in Orange Arms.

After Jonathan's own Sengoku Driver is destroyed, he attains the last remaining Pinedone Trooper Driver and becomes the second Kamen Rider Pinecone in honor of original Kamen Rider Pinecone's death. Unfortunately, the Driver is destroyed shortly afterwards by Kamen Rider Darkness Samurai and the Grasshopper Monster.

Devices

 * Sengoku Driver - Transformation device (Originally used the prototype version but later switched to a customized mass production version, until the latter was destroyed by Emma Tao and Knuckleman; later replaced with a normal mass production Driver providing the Pinecone base suit in the finale, though it is destroyed shortly after its first use.)
 * Lockseeds - Gives access to Barker/Pinecone's Arms changes, depending on which lock is used

Weapons

 * Arms Weapons - Weapons that come with the Arms:
 * Barker:
 * Acorn Hammer - Barker Acorn Arms' personal weapon
 * Ninjetti Staff - Barker Pinecone Arms' personal weapon
 * Walnut Fists - Barker Walnut Arms' personal weapon
 * Pinecone:
 * Ninjetti Staff - Pinecone Pinecone Arms' personal weapon
 * Acorn Hammer - Pinecone Acorn Arms' personal weapon
 * Walnut Fists - Pinecone Walnut Arms' personal weapons

Vehicles

 * Lock Vehicles - Vehicles that unfold from special Lockseeds:
 * Rose Attacker - Kamen Rider Barker's Rider Machine