The soundtrack was composed by Mahito Yokota and Koji Kondo, using a symphony orchestra for the first time in the series. Nintendo aimed to make the game appeal to players of all ages, and the team had more freedom in designing it compared to other Super Mario games because of the outer space setting. The concept for the use of spherical platforms originated from ideas used in Super Mario 128, a GameCube tech demo shown at Nintendo Space World in 2000. Nintendo EAD Tokyo began developing Super Mario Galaxy after the release of Donkey Kong Jungle Beat in late 2004, when Shigeru Miyamoto suggested that Nintendo should commission a large-scale Mario game. Certain levels use the motion-based Wii Remote functions. The player character is controlled using the Wii Remote and Nunchuk, and completes missions, fights bosses, and reaches certain areas to collect Power Stars. The levels in the game consist of galaxies filled with minor planets and worlds, with different variations of gravity, the central element of gameplay.

As Mario or Luigi, the player embarks on a quest to rescue Princess Peach, save the universe from Bowser, and collect 121 Power Stars. It is the third 3D game in the Super Mario series. Super Mario Galaxy is a 2007 platform action-adventure video game developed and published by Nintendo for the Wii.

Super mario galaxy ost ambience