Because Nintendogs + Cats was scheduled to be released first, Mario Kart 7 was given lower priority and only eight staff members were assigned to begin work on it. When it was time to focus on the game, producer Hideki Konno realized that there was not enough staff available due to many other titles being developed at the same time, including The Legend of Zelda: Skyward Sword which had its production extended into 2011. In order to finish the game in time for the 2011 Christmas season, Nintendo consulted with Retro Studios, which had just finished making Donkey Kong Country Returns, to co-develop the game. Retro started work on Mario Kart 7 in December 2010. The team focused on producing the classic racing courses, remakes of courses from the earlier Mario Kart titles, in order to learn both “lessons about the development process [for Mario Kart games]” and “about what makes a good course from a design perspective. ”

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