Super Paper Mario is a 2007 action role-playing game (RPG) developed by Intelligent Systems and published by Nintendo for the Wii. It is the third installment in the Paper Mario series. The game follows Mario, Peach, Bowser, and Luigi as they attempt to collect Pure Hearts and stop Count Bleck and his minions from destroying the universe. Whereas preceding Paper Mario games are turn-based, Super Paper Mario has elements from RPGs and side-scrolling platformers; some critics described it as a hybrid of the two genres. The game's main feature is Mario's ability to flip between 2D and 3D perspectives. Most of the game is played in a 2D perspective, with the 3D perspective being used to solve puzzles and access previously unreachable areas. Peach, Bowser, and Luigi also have unique abilities, and additional abilities can be gained through acquiring partner characters known as Pixls. Super Paper Mario received generally positive reviews and was one of the best-reviewed Wii games of the year. Critics praised its gameplay, dimension-flipping mechanic, originality, and story, although the large amount of text received some criticism. It was nominated for and won several awards, including the award for Outstanding Role Playing Game at the 12th Satellite Awards; critics have since regarded it as one of the best games on the Wii. More than 4.23 million copies have been sold as of 2014, making it the best–selling game in the Paper Mario series and one of the best–selling games on the Wii. In 2016, the game was re–released on the Wii U eShop. The fourth game in the series, Paper Mario: Sticker Star, followed in 2012.