Endless, exciting ninja action awaits kids with this LEGO Ninjago Jay Mechanical Titan (71785) building set. The adjustable mech features a Jay-style cockpit on its chest, plus a large dragon blade, 2 katana swords and 2 shoulder-mounted launchers. 5 minifigures for awesome battles This cool playset for kids includes 5 minifigures, ninja warriors Jay and Nya equipped with a sword, as well as green bone warriors Bone King, Bone Knight and Bone Hunter with their own combat tools from the assorted bone warrior arsenal and a chariot mounted , their rapid-fire double arrow rifle loaded with 4 arrows. There is also a Pixal Bot in the set. LEGO Builder app With the LEGO Builder app, you and your child can embark on a simple and intuitive building adventure. In the app, you can enlarge and rotate the 3D version of the models, save sets and track your progress.