The LEGO Marvel Super Heroes Avengers: Age of Ultron The Hulk Buster Smash (76031) is now available for purchase from Amazon at retail price of $29.99. The set is also has Amazon Prime shipping available as well. The set is sold by LEGO but it may go out of stock pretty quickly and third-party seller listings may start showing up soon after so if you want to pick it up a little early, now is your chance.
Update: The listing has been taken down.
Hulk has been trapped by the powers of Scarlet Witch and she is ready to fire an electrical bolt if he tries to escape! Place Iron Man in the cockpit of the humongous Hulk Buster suit and rush to the rescue. On the way you must fend off aerial attacks from the flying Ultron.
Adjust the Hulk Busters arms and legs to create fearsome battle poses and grab the villain with the powerful hands. With Ultron safely in the mechs grip, attach Iron Man to his Super Jumper. Then take out Scarlet Witch with an accurate jump and free the imprisoned Hulk!
Includes 3 minifigures with assorted weapons and accessories: Iron Man, Ultron and Scarlet Witch, plus a Hulk figure.