Silver Stars Down Deep

Silver Stars Down Deep is the second mission of the Spin-Dig Galaxy in Super Mario Galaxy 2. The mission's objective is to collect five Silver Stars by utilizing the Spin Drill.

Layout
The player starts on a raised platform on the Starting Planet, like with the last mission. However, once the player steps off the platform, Cosmic Clones will appear and follow the player's movements. By breaking open a crystal and using the Sling Star inside, the player can reach a platform with a Piranha Plant that will reveal a Sproutle Vine when defeated. The vine will lead the player to the Purple Cylinder Planet, and entering the Warp Pipe will take them inside to a two-dimensional platforming room with dirt the player has to dig through using the Spin Drill. By lining their drills with the sloped walls in the dirt, the player can get around to the Warp Pipe that leads to the next area, where they have to dig through dirt while also avoiding moving Amps. The Warp Pipe at the end will take the player to a Launch Star that will send the player to a Starshroom, and the Launch Star there will take the player to the Square Planet where the Silver Stars are found. By using a Spin Drill to dig through the dark patches, the player can enter the hollowed out planet and collect the five Silver Stars, one of which is located on the planet's surface. Once all five Silver Stars are collected, the Power Star will appear.

Enemies

 * Cosmic Clones
 * Piranha Plants
 * Amps
 * Diggas

Planets visited

 * Starting Planet
 * Purple Cylinder Planet
 * Bonus Planet (Optional)
 * Starshroom
 * Square Planet