The Deep Shell Well

The Deep Shell Well is the first mission of the Slimy Spring Galaxy in Super Mario Galaxy 2. The mission's objective is to navigate the waters to find Captain Toad.

Layout
The player starts off in the Starting Planet. They should drop down the slide and into the water. The player should grab a Green Shell for faster transportation and for defeating the Snoodles. While in the small tunnel, the player should move to the left, get the Comet Medal and exit the area. They should continue going through the water, defeating the Snoodles. When they get to an upward slope, they should swim up it, avoiding the Urchins and Gringills at the top. They should continue swimming through the downwards slope until they reach the Launch Star that takes them to the next planet. The player should proceed to drop down the hole and grab a Green Shell at the bottom. They should swim through the rings to get a boost while avoiding Boos and crashing into the walls. At the end, they should swim up the slope and end up at the Oasis Area. They should throw the shell at the treasure chest, freeing Captain Toad who grants the player the Power Star.