Wii U sales are strong during the first week on the market in North America.
While Nintendo loses money on each Wii U console sold, selling a single first party game turns it into a profit.
Analysts from IHS predict that the Wii U will be a popular console, selling 50 million units in just 4 years.
Nintendo estimates Wii U sales of 5.5 million by March 2013, which is very close to the sales of the original Wii console.
The touchscreen controller can take the Wii U further than the Wii, believes ZombiU producer.
Games analyst believes Nintendo will have a hard time convincing casual gamers to buy into the Wii U.
Nintendo expects to sell 10 million home consoles, 8 million of those being the new Wii U.