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. It also has a massive ship called The Dreadnought.

Beam Planet
It is a planet shaped like an hourglass that is full of electric beams and other electrical hazards that spin around it. At the end is a Launch Star that Mario must get to by jumping on a spring.

Dreadnought Main Core
The entrance has three Helmet Goombas and a Warp Pipe. The inside part is a side-scrolling area with hazards such as amps, cannons and moving walls. At the end is another Warp Pipe. The gravity of this area can be changed with an arrow.

Tower
It's a section in the main planet consisting of various cylinders that fall when Mario gets to a higher level. On the top parts are a pair of moving walls and a Launch Star.

Aqua Planet
It is a medium-sized planet with a Bill Blaster and several Helmet Goombas. There is a vault that must be broken to flood the planet. There are also a lot of platforms with lasers that move across the water and a pair of Robot Turtles. Above it is a small cubical planetoid. Some metallic structures are above the water, and one of them has a Power Star.

Infiltrating the Dreadnought
Mario or Luigi 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
Mario will start out on a U-shaped platform with electric borders. Jumping down to the platform below, the player can get some Star Bits and also use a Bob-omb to break a cage with 1-Up Mushroom trapped in it. To get further in the level, Mario must run left on the giant screw until he's close enough to jump to the next platform. Here, the player must avoid Chain Chomp balls from hitting them while lighting up all the blue tiles.

After this, two more screws must be traversed. However, the player cannot fall off like the last time, because there is a black hole beneath the area. This task is made slightly more harder, as two Electrogoombas will shoot Coconuts at Mario. If timed correctly, they can be destroyed when they first appear. Once the player is on the platform where the Electrogoomba's were, Mario can pick up the coins they leave behind. If Mario looks upwards, he can see Star Bits in the design of a Star. A Launch Star is up ahead. However, a Bob-omb sprouts from a device underneath it, making getting to the Star, and getting the treasure from the blocks near it (the left one has Star Bits, while the right one has Coins), time consuming. Mario can use his Star Spin the Bob-omb and throw it away from the him, but still on the platform for a few moments peace to accomplish getting the treasure and/or getting to the Launch Star.

Get the Star Bits that appear when the Launch Star is used. Mario soon lands on a small platform. This is much like the first mission of Battlerock Galaxy, except Mario doesn't have the leisure to go underneath the moving platform. Mario must dodge cannonballs, electric fences, and Goombas, while jumping to different platforms through use of gravity. Eventually, Mario will end up on a platform with a Thwomp that he must get past, which leads to more platforms. At the end of these platforms, Mario must jump to avoid waves a Jumper is making. When close enough, he can jump onto the the Jumper, and get the Power Star.

Revenge of the Topman Tribe
Topmaniac has returned and brought the Topmen with him. The player must go across the galaxy fighting his minions, until they end up in an area where they must fight Topmaniac and his allies.

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

Battlestation's Purple Coins
The player must collect Purple Coins on the moving platforms from the end of Dreadnought's Colossal Cannons. Miss only one and the player will lose a life.

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, and he has only 30 seconds.