Ninja

The Ninja theme was a short lived subtheme of Castle, that ran from 1998 to 2000. The sets of the theme were based around the Samurai and Ninja of feudal Japan. In 2009, they appeared in 4850307 LEGO Battles, as an ally of theImperials, and the enemy of both Pirates and Islanders. Aninja minifigure was also released in 8683 Minifigures Series 1 in 2010. It was succeeded by Ninjago in 2011.