Build and display the LEGO Marvel Super Heroes The Hulkbuster: Ultron Edition—a highly detailed LEGO brick version of the Hulkbuster mech. This builders' toy features a rotating torso, posable fingers, arms, legs and feet, and glow-in-the-dark elements. We love the design complexity of its interchangeable left arms, including a jackhammer arm with punching function, as well as its activating LEGO light brick in the chest. This superhero toy also includes a display platform with alternate attachment points for posable robotic construction arms.