Sea Slide Galaxy

The Sea Slide Galaxy is a galaxy in Super Mario Galaxy. This galaxy is similar to the Loopdeeloop Galaxy but this galaxy goes in a circle and doesn't have a current. This galaxy also has many islands.

Going After Guppy
Mario starts on a small piece of land holding the Toad Brigade captain and several penguins complaining about Guppy. In order to get things going, the player must confront Guppy, in which he challenges Mario to see who has the better flippers by having the player go through all eight rings that Guppy sets. Once the player had gone through all eight rings, Guppy sticks to his word, and gives Mario a Power Star.

Faster Than a Speeding Penguin
Beating this level will make the Sand Spiral Galaxy available via a hungry Luma.

Underwater Cosmic Mario Race
Mario starts of on an island. After the player takes a few steps Cosmic Mario will appear and then the race starts. As the name of the mission states, the player must jump into the water and race Cosmic Mario to the Star. The trick is for Mario to do a Long Jump into the water and grab a Red Shell once Mario is in the water. Halfway through the race Cosmic Mario will jump out onto another small island. This is a chance for the player to catch up and get the star.