Dreadnought's Garbage Dump

Dreadnought's Garbage Dump is the hidden sixth mission of the Dreadnought Galaxy in Super Mario Galaxy. This mission takes place during the Revenge of the Topman Tribe mission.

Layout
On the underside of the UFO the player starts on is a Warp Pipe that will take the player to a platform with a Gearmo and piles of trash. Talking to the Gearmo and accepting his task will begin the challenge of destroying all the garbage piles with Bob-ombs within a time limit of thirty seconds. Completing the challenge will have the Gearmo reward the player with the Power Star.

The Coin Generators on the ground serve as a hint for where the Bob-ombs should be thrown.

Trivia

 * Based on the number of Coin Generators, the player is expected to throw six Bob-ombs. However, it is possible to complete the level with five.