Choosing a Favorite Snack

Choosing a Favorite Snack is the only mission of the Sand Spiral Galaxy in Super Mario Galaxy.

Layout
The player starts on the bow of a destroyed Airship, with a Sling Star plank ahead. The Sling Star will send the player to the inside of a structure with quicksand, light, poles, Boos, and Water Shooters. In order to traverse the area, the player needs to choose a power-up between either the Boo Mushroom or the Bee Mushroom. As Boo Mario, the player needs to avoid the light sources coming down, as well as the Boos they will attract. As Bee Mario, the player needs to use the poles to regain flight, as well as avoiding the Water Shooters at the end of the area. At the end of the first area is a Sling Star that will send the player up over the wall to the next area.

The next area is full of rotating platforms and Space Mines, moving around the moon in the center. By using the Rainbow Star power-ups along the path, the player can keep up with the rotation of the platforms and destroy the Space Mines, eventually reaching the Power Star on top of the moon at the end.

Trivia

 * "Choosing a Favorite Snack" is one of only two missions with three different power-ups, the other being Bubble Blastoff.