|This article is about a/an set of alternate forms in Kamen Rider Gaim.|
- "Matsubokkuri Arms: Ichigeki in the Shadow!"
- ―Transformation announcement[src]
Matsubokkuri Arms (マツボックリアームズ Matsubokkuri Āmuzu, lit. Pinecone Arms) is an alternate pinecone-based armored Japanese Ashigaru form of Armored Riders. Accessed through the Matsubokkuri Lockseed, this form's Arms Weapon is the Kagematsu, while the helmet the Rider wears is the Matsu Kabuto (マツカブト lit. "Pine Helmet") with the Comb Eye (コームアイ Kōmu Ai) visor. While it is the default form of Armored Rider Kurokage, it can also be used by other Riders.
- Armored Rider Kurokage
- Ryoji Hase (Main user; Gaim Episodes 5-7, Sengoku Movie Battle, 10, 11, Golden Fruits Cup!, Final Stage)
- Kurokage Troopers (Gaim Episodes 12, 14-16, 19, Gaim Gaiden: Zangetsu, 22, 23, 27, 30-32, Golden Fruits Cup!, Gaim Gaiden: Knuckle)
- Hideyasu Jonouchi (Gaim Episode 47)
- Mecha Kurokages (Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle)
- Armored Rider Gridon (Kamen Rider Battle: Ganbarizing)
- Armored Rider Knuckle (Kamen Rider Battle: Ganbarizing)
- Kamen Rider Gaim
- Jimber Ride Wear
- Kachidoki Ride Wear
- Kiwami Ride Wear
- Ride Wear (Drive Arms ver.)
- Kamen Rider Baron
- Kamen Rider Ryugen
- Kamen Rider Zangetsu
- Ride Wear (Watermelon Arms ver.)
- Kamen Rider Bravo
- Kamen Rider Bujin Gaim
- Kamen Rider Mars
- Kamen Rider Kamuro
- Kamen Rider Zangetsu Shin
- Kamen Rider Duke
- Ride Wear (Dragon Energy Arms. ver)
- Kamen Rider Sigurd
- Kamen Rider Marika
- This form's Arms Weapon is the Kagematsu.
- Kage Nui Tsuki (影縫い突き lit."Shadow Sewing Stab"): Has two variations depending on which function Kurokage activates from his Sengoku Driver.
Kurokage jumps and charges with his Kagematsu, forming a giant energy pinecone on the tip to stab the opponent with.
Kurokage jumps and spins rapidly while diving at his opponent with the Kagematsu.
- A Matsubokkuri Arms chest piece was recycled and painted silver to form part of Kouta Kazuraba's costume as Man of the Beginning.