|“||Hai! Budou Squash!||„|
|~ Finisher announcement via Sengoku Driver|
The Budou Ryuhou is Kamen Rider Ryugen and Kamen Rider Zangetsu's weapon while in Budou Arms. It resembles a magnum or a revolver, with the barrel taking an aesthetic element from a Gatling gun. The pull hammer is in the shape of grape leaves to go with the grape-like additions to the side of the gun, with multiple purple-tinted muzzles bundled to take the form of a bunch of grapes. This weapon is normally only accessed through the Budou Lockseed, but Gaim can also use this weapon while in Kiwami Arms.
Ryugen can enhance his firepower temporarily by pulling the hammer once.
- Dragon Shot: After Ryugen activates his Sengoku Driver's Squash function, he pulls the hammer once, making violet-hued energy shaped after grapes expel from the sides of the Ryuhou, with golden Asian lung energy coils circling the barrel. The energy balls then move to the muzzle of the gun, pooling into one big sphere. Once the charge is complete, seconds before the trigger is pulled, the ball takes the form of an Asian lung's head, and shots are fired at high speeds, with each shot taking the form of a flying Asian lung.
- This is the first Arms Weapon to be in the form of a gun, followed by the DJ Gun.
- This may be due to being a visual pun of grapeshot, a type of small, ball ammunition used for cannons.