Kamen Rider Gridon

• Rider Height: 203 cm
• Rider Weight: 110 kg

Ability Parameters^[1]

• Punching Power: 8.9 t
• Kicking Power: 9.2 t
• Maximum Jump Height: 22 m
• Maximum Running Speed: 100 m per 6.5 seconds

Donguri Arms (ドングリアームズ, Donguri Āmuzu, lit. "Acorn Arms") is Gridon's acorn-based default form. Accessed through the Donguri Lockseed, this form bears the Dome Casque (ドームカスク, Dōmu Kasuku) helmet with the Nut Eye (ナットアイ, Natto Ai) visor. This form debuts in episode 5.

While assuming Donguri Arms, Gridon dons the Donguri Armor Part (ドングリアーマーパート, Donguri Āmā Pāto, lit. "Acorn Armor Part") and his Arms Weapon is the Donkachi. If Gridon activates his Sengoku Driver's Sparking function, he can temporarily convert the Donguri Armor Part into its nut form and spin it to use as a shield for bouncing off enemy attacks.

In this form, Gridon can throw punches stronger than both Gaim in Pine Arms and Baron in Banana Arms, though his kicking power is far weaker then the aforementioned Riders. His jumping height and running speed are the same as Gaim's in Pine Arms. Gridon is later further strengthened when his Sengoku Driver is replaced with an updated, refined model.

This Arms has three finishing attacks.

• Sengoku Driver finisher:
  • Donkachi Giant Rotation (ドンカチ大回転, Donkachi Dai Kaiten): Gridon activates the Squash function on his Sengoku Driver and spins at high speeds with the Donkachi held out. The spinning forms an acorn projection before Gridon knocks the opponent with a high-velocity hammer slam.
  • Gridon Impact (グリドンインパクト, Guridon Inpakuto): Gridon activates the Au Lait function on his Sengoku Driver and dives from above and strikes the enemy with the Donkachi.
  • Unnamed Rider Shooting: Gridon activates the Sparking function on his Sengoku Driver and swings the Donkachi, sending a pulse of energy at the target.

Hideyasu loses access to Donguri Arms in a battle against Zack and Yoko, resulting in the destruction of his Donguri Lockseed and Sengoku Driver.

Lychee Arms (ライチアームズ, Raichi Āmuzu) is Gridon's lychee-based final form. Accessed through the Lychee Lockseed, this form bears the unknown helmet with the unknown visor.

While assuming Lychee Arms, Gridon dons the Lychee Armor Part (ライチアーマーパート, Raichi Āmā Pāto) and his Arms Weapon is the Shine Donkachi and Shine Lychee Sword‎‎.

This form has the following finishers:

• unnamed Rider Thrust: When Gridon activated his Sengoku Driver’s Au Lait function, he jumps and stabs the ground, encasing the enemy in energy lychees.
• unnamed Rider Thrust: After Gridon activates his Sengoku Driver's Sparking function, he throws and stabs enemy with his Shine Lychee Sword, then jumps in the air, charges the Shine Donkachi with yellow energy, before hits the Shine Lychee Sword with the Shine Donkachi, causing a explosion when he strikes the opponent.

These Arms are normally used by a different Armored Rider. With the exception of Suika Arms, all of these forms are exclusive to Kamen Rider Battle: Ganbarizing.

• Suika
• Matsubokkuri
• Kurumi

Suika Arms

• 1
• 2

"Come on! Suika Arms! Oodama big bang! (Bowling pins falling)"

―Transformation announcement^[src]

"Yoroi/Oodama/Gyro Mode!"

―Mode change announcement^[src]

Suika Arms (スイカアームズ, Suika Āmuzu, lit. "Watermelon Arms") is Gridon's watermelon-based mecha form. Accessed through the Suika Lockseed, this form bears the Suika Head (スイカヘッド, Suika Heddo, lit. "Watermelon Head") helmet with an unspecified visor. Suika Arms is normally used by Kamen Rider Gaim.

While assuming Suika Arms, Gridon dons the Suika Armor Part (スイカアーマーパート, Suika Āmā Pāto, lit. "Watermelon Armor Part") and his Arms Weapon is currently unknown. This form can also interchange into three modes.

• Yoroi Mode (ヨロイモード, Yoroi Mōdo, lit. "Armored Mode"): Suika Arms' warrior mode, which equips Gridon with its main weapon for combat.
• Oodama Mode (大玉モード, Ōdama Mōdo, lit. "Big Ball Mode"): Suika Arms' watermelon mode, which encases Gridon's entire body to use either for offensive/defensive purposes or as a mode of transportation.
• Gyro Mode (ジャイロモード, Jairo Mōdo): Suika Arms' flight mode, which allows Gridon to fire seed-like bullets from the fingertips.

Suika Arms is the most massive Arms Change, and it shows by having the most monstrous punching and kicking power once in Yoroi 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 Oodama Mode and Gyro Mode. Also, after a utilization, the Suika Lockseed's color becomes grey, indicating that its energy is low and needs time to recharge back to its green color before it can be used again.

This form is exclusive to Gaim Episode 34.

Matsubokkuri Arms

"Come on! Matsubokkuri Arms! Ichigeki in the shadows!"

―Transformation announcement^[src]

Matsubokkuri Arms (マツボックリアームズ, Matsubokkuri Āmuzu, lit. Pine Cone Arms) is Gridon's pine cone-based form. Accessed through the Matsubokkuri Lockseed, this form bears the Matsu Kabuto (マツカブト, Matsu Kabuto lit. "Pine Helmet") helmet with the Comb Eye (コームアイ, Kōmu Ai) visor. Matsubokkuri Arms is normally used by Kamen Rider Kurokage.

While assuming Matsubokkuri Arms, Kurokage dons the Matsubokkuri Armor Part (マツボックリアーマーパート, Matsubokkuri Āmā Pāto, lit. "Pinecone Armor Part") and his Arms Weapon is the Kagematsu.

Kurumi Arms

"Come on! Kurumi Arms! Mr. Knuckle Man! (Three count bell ring with cheering crowds)"

―Transformation announcement^[src]

Kurumi Arms (クルミアームズ, Kurumi Āmuzu, lit. "Walnut Arms") is Gridon's walnut-based form. Accessed through the Kurumi Lockseed, this form bears the Knuck Met (ナックメット, Nakku Metto) helmet with the Knuck Eye (ナックアイ, Nakku Ai) visor. Kurumi Arms is normally used by Kamen Rider Knuckle.

While assuming Kurumi Arms, Kurokage dons the Kurumi Armor Part (クルミアーマーパート, Kurumi Āmā Pāto, lit. "Walnut Armor Part") and his Arms Weapon is the Kurumi Bombers.

The Rider Arms (ライダーアームズ, Raidā Āmuzu) are forms based on past Kamen Riders. All of these forms are exclusive to Kamen Rider Battle: Ganbarizing. However, some of these forms are also used in the norm by other Armored and Genesis Armored Riders.

• Double

DoubleArms

"Come On! W Arms! Cyclone! Joker! Ha-Ha-Ha!"

―Transformation announcement^[src]

W Arms (ダブルアームズ, Daburu Āmuzu) is a Legend Rider Arms based on Kamen Rider Double's CycloneJoker form that is accessed through the Double Lockseed.

While assuming W Arms, Gridon dons the Double Armor Part (ダブルアーマーパート, Daburu Āmā Pāto) and his Arms Weapon is the Triggermagnum.

This form is used by Gridon exclusively in Kamen Rider Battle: Ganbarizing, having been used on-screen by Kamen Rider Ryugen in Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle.

Donguri Arms (ドングリアームズ, Donguri Āmuzu, lit. "Acorn Arms") is Proto Gridon's default acorn-based armored Medieval Squire form. Accessed through the Donguri Lockseed, this form bears the Dome Casque (ドームカスク, Dōmu Kasuku) helmet with the Nut Eye (ナットアイ, Natto Ai) visor.

While assuming Donguri Arms, Proto Gridon dons the Donguri Armor Part (ドングリアーマーパート, Donguri Āmā Pāto, lit. "Acorn Armor Part") and his Arms Weapon is the Donkachi.

A modified Lockseed created by Oren Pierre Alfonzo, it looks exactly like the regular Donguri Lockseed until Jonouchi attempts to insert it into the Driver. Rather than open, the lock plays a clip of Oren singing an off-key version of the normal Driver sound effect, opens on its own to reveal a picture of Oren's face and the inscription "Bakamon!" (バカモン!, "Bakamon!" Combination of "Baka" and "Come On!", more literally "Nincompoop!") on its lower tab as any object will fall onto of his head.

• In episode 17, inside the Charmant it drops a metal pan on Jonouchi's head while the Lockseed announces "Bakamon" followed by Haji o shiri nasai! (恥を知りなさい！, Haji o shiri nasai! lit. Shame on you!). Later, the lockseed plays Oren's version of "Never Give Up!" in a loud voice.
• In episode 18, while trying to figure out which of his Lockseeds was the real one, he chooses poorly and picks the wrong one twice, resulting in multiple soda cans from a garbage man's bag dropping onto him, followed by Oren jump-kicking on him instantly upon finding him. When Oren finds out about the Beat Rider Team dance event, he mistakenly thinks that Jonouchi plans to take part in it too and slams his butt onto Jonouchi's face.

Consequences

Metal pan dropping on Jonouchi's head

Multiple soda cans dropping on Jonouchi's head

A trash can covering Jonouchi's head