New スーパーマリオブラザーズ Wii
The game was revealed at E3 2009 on June 2. In Miyamoto's private conference, it was stated that the game was very far along in development, but its release was held back to mid-2010 because of "New Super Mario Bros. Wii"s release in late 2009. Miyamoto also stated that the game has 95–99% new features, with the rest being previous features introduced in "Super Mario Galaxy". With regard to the original game, Nintendo of America President and CEO Reggie Fils-Aime stated in an interview that the sequel would be more challenging, and Miyamoto said in a "Wired" interview that the game would have less focus on plot. Miyamoto initially hinted that the game might utilize the "Super Guide" feature, introduced in "New Super Mario Bros. Wii", into the game, and this was confirmed by Nintendo's Senior Manager of Product Managing, Bill Trinen, who claimed that the feature was implemented differently compared to what "New Super Mario Bros. Wii" offered. The feature is called Cosmic Guide, where the Cosmic Spirit (Rosalina) takes control of Mario.