"The Toy Box mode in Disney Infinity: Marvel Super Heroes has been altered with the addition of structured play. A new brush system allows easy creation of cities, race tracks, dungeons, and other widespread structures. New “builder” characters will help players build up worlds in the Toy Box automatically, though everything they create will be fully editable. Interiors are also added to Toy Box mode, enabling further customization of elaborate structures, both inside and out, filling them with props and decorations. New tower defense levels include Asgard from “Thor”."
~ Mike Henriquez, GameRevolution