Dreadnought Galaxy

The Dreadnought Galaxy is a galaxy in Super Mario Galaxy. This galaxy is a very mechanical and technological battle station. This is where Topmaniac is refought, the leader of the Topman. It uses several elements from Battlerock Galaxy but is somewhat more difficult.

Infiltrating the Dreadnought
Mario (or his brother) has to explore a couple of planets with lasers before he gets into the Dreadnought. Then he has to go through some sidesrolling areas before reaching a planet with a Bill Blaster. He need to flood the planet by breaking a cage with a Bullet Bill. This triggers laser platforms which he must jump across for a Power Star.

Dreadnought's Colossal Cannons
After visiting various planets Mario must ride on moving platforms to get a star.

Revenge of the Topman Tribe
Topmaniac has returned and brought the Topmen with him! You must go across the galaxy fighting his minions, until you fight him in an arena.

Topman Tribe Speed Run
Just like Revenge of the Topman tribe, only with a time limit.

Battlestation's Purple Coins
You must collect Purple Coins on the moving platforms from the end of Dreadnought's Colossal Cannons

Dreadnought's Garbage Dump
Like the similarly-named mission from the Battlerock Galaxy, Mario must blow up trash with bombs to get a star. However, here there is more trash.