|This article uses an unofficial name. It will be renamed if an official name is released.
Unknown Samurai Bakugan is an anime-exclusive Bakugan Battle Planet samurai-like Bakugan that first appears in the episode Top Slot. Shargo Ronin owns three of this Bakugan. This Bakugan's name is currently unknown, as Shargo does not call it by name and it did not speak during that episode.
Shargo Ronin uses this Bakugan in a battle against Dan Kouzo, but later it is found out that Shargo owns two more this Bakugan. Shun later joins the battle with his Fade Ninja and the two Brawlers defeat Shargo and his three shogun Bakugan.