Bowser's Gravity Gauntlet

Bowser's Gravity Gauntlet is a galaxy in the game Super Mario Galaxy 2. It is located in World 4. The level is based entirely on gravitational forces. Most of the level is sidescroller, except for the beginning and the end. The level is covered in lava, but there is one part where Mario will need to swim through water to get through the level. Magikoopas are common enemies here and can summon Burn Bits at their will. Firebars are placed throughout the whole level, even underwater. Fireballs also defy gravity because they can change direction in midair. When Mario reaches the end, Bowser will challenge Mario to a battle. Bowser battles the same way he is fought in World 2, except he can create shockwaves and leave a trail of fire.

Bowser's Castle
It is a big fortress where there appears to be almost no gravity at all. At the beginning, there is some lava and fireballs that jump out of it. When Mario enters the castle, he will find more fireballs jumping out of the lava. As he progresses, he will switch to walking in the wall and in the ceiling. After that, there is an underwater section with firebars and Cheep Cheeps. Near the end is a spinning platform and a small section with a Whomp, just before the door before the Bowser Battle Planet.

Big Door Planet
A planet where Mario has to ground pound meteors in order to open the door leading to Bowser.

Bowser Throne Planet
A small planet shaped like a star. In front of it is Bowser's throne. After talking to him, he will send Mario to the Bowser Battle Planet.

Bowser Battle Planet
It is very similar to the first battle planet, except for the fact that it is more deteriorated. It is a small planet made out of small bricks and a few rocks with coins.

Gravity Star Speed Run
This Power Star is at the very end of Bowser's Castle, on the left side of where the launch star was. Mario must collect Timers to not run on of time. To collect the power star, the player must wall jump on the wall that separate half on the final part to collect the star.

Green Star 1
The first Green Star in this galaxy is on a sunken pillar in lava near the enterance to the castle. The player can backward somersault onto the pillar. Also they can let Mario or Luigi bounce from the lava into the green star.

Green Star 2
The second Green Star in this galaxy is at the end of the castle above a Question Block. The player can backward somersault and Spin to get the star. It is ideal to get the star with Luigi instead of Mario.