A movie of the game was shown demonstrating similar physics to those featured in the first Galaxy title, new environments and abilities, as well as Yoshi.
Nintendo said in a statement: "This upcoming adventure for the Wii console marks the first time a second 3D Mario game has arrived in the same console generation. In the game, Mario rides his trusty dinosaur companion, Yoshi, to new stars and the fantastic worlds found there. This 3D platforming adventure provides longtime video game fans with a fresh round of out-of-this-world challenges in the style introduced in the critically acclaimed original. The game is planned for 2010."