The American ninja himself, Starninger, will be making his debut on Shuriken Sentai Ninninger in episode 9. But for now you can tide yourself over with full official images of DX Bison King!
Composed of Rodeomaru & the Bison Buggy, Bison King is set for an April 2015 release and retails for 6800 yen. You can currently pre-order this set from Hobby Link Japan for 5440 yen or alternatively at Amazon Japan for 7344 yen.