World 6 (Super Mario Galaxy 2)

"The battle draws near... Do your best! And let's get him this time!"

- Lubba

World 6: Bowser in Your Sights is the sixth world featured in Super Mario Galaxy 2. This world contains a large, orange-red Black Hole and is at the center of the universe. It holds seven galaxies, the last of which is Bowser's Galaxy Generator, which features the third and last encounter with Giant Bowser.

Trivia

 * The music that plays in the background of this world is a slowed-down version of the music that plays during the Bowser battles in this game.