"Mario Party 9 released on the Wii in North America on March 11, 2012 with a MSRP of $49.99 in the U.S.
Mario Party 9, I believe, was the first game from the series to be developed by Nd Cube, instead of Hudson, and it was published by Nintendo. The game received an ESRB rating of 'Everyone' with 'Mild Cartoon Violence' listed as content for gamers and parents to be aware of.
How many hours have Wii owners reported partying with Mario Party 9 since it released just over 3 months ago? Brew some coffee, and let's take a look!", writes CoffeeWithGames.