The LEGO NINJAGO 71843 Rogue's Mech Dragon Rider Set lets kids enact tales from season 3 of the NINJAGO Dragons Rising TV show. Kids can separately play with a mech toy and the first-ever NINJAGO robot dragon toy before combining them into the awesome Rogues Mech Dragon Rider. For added digital fun, builders can zoom in, rotate models in 3D and track their progress using the fun, intuitive LEGO Builder app.The mech toy has movable arms and legs, a chest that opens to place a minifigure inside and a sword, while the dragon figure has movable wings, head, jaw, legs and tail and a sword. There are 4 minifigures: ninja warriors Rogue and Arin, and the villainous duo of Rox and a Spectral Dragonian Warrior who have a banner with a secret message that can only be read using Arins reveal blade accessory.