Boys and girls ages 7 plus have all they need to play out battle action with this Ninja Vehicle Tree House Battle (71857) building set, based on season 4 of the NINJAGO® Dragons Rising TV show. This fighting toy playset comes with a 3-story tree house, a helicopter toy, a motorcycle toy and 6 minifigures. The tree house toy includes a workshop, a tearoom, a terrace, a swinging vine rope, a trap that releases a small rock, a rotating bridge and a stud shooter. Kids can enjoy unlimited role-play options with a motorcycle toy that has moving wheels, a saddle-cockpit and 2 stud shooters, or take to the sky with a helicopter toy that has an opening cockpit and rotating blades. The NINJAGO set features 6 minifigures: Kai, Zane, dragon form Jay and Euphrasia to play out battles against the Acid Monster and Loyalist. Kids can build the playset with confidence using the LEGO® Builder app – zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 642 pieces.