Nintendo sold more than 400,000 of its new video game console, the Wii U, in its first week on sale in the United States, the company said Monday. The Wii U was released on Nov. 18 in America at a starting price of $300. Nintendo said the sales figures, based on internal estimates, are through Saturday, or seven days later. The Wii U is the first major game console to debut in six years. A new touch-screen controller promises to change how people play games by offering people in the same room a different experience, depending on the controller used.