|This article is about a/an changer/weapon in Seijuu Sentai Gingaman.|
Bull Riot (ブルライアット Buru Raiatto): Hyuuga's sword that also functions as his transformation device, using it to transform into the Black Knight by using the henshin call "Knight Rebirth" (騎士転生 Kishi Tensei). Originally belonging to his predecessor Bull Black, the Bull Riot can also be changed into a laser rifle mode. Attacks with multiple slash attacks; including "Black Chop" and "Black Attack".
At the climax of the Legend War, the Bull Riot was made redundant when Hyuuga sacrificed his powers with the rest of the first 34 Super Sentai to destroy the invasion force of the Space Empire Zangyack. Resurfacing a Ranger Key, the power of the Black Knight would be used by the Gokaigers to assume the form via the Gokai Change. Ultimately, the Gokaigers returned their borrowed powers to their rightful owners after overthrowing Zangyack.
- This is the first changer in Sentai in the shape of a weapon.
- The Bull Riot somehow bears a resemblance to the design of He-Man's Sword of Power and She-Ra's Sword of Protection, both of which share a common design. A more startling resemblance is how Hyuuga transforms into Black Knight raising a sword and surrounded by energies (such as how Adora transforms into She-Ra) and finally exploding into his Black Knight form (such as how an explosion changes Adam, also raising his sword, into He-Man).
- Interestingly, the second version of Magna Defender, BullBlack's American counterpart, possessed a morpher rather than using his weapon to transform. In contrast, the earlier Gold Zeo Ranger did not possess a morpher while his Sentai counterpart did.