First you need to get the bee thing that makes Mario a bee then fly as high as you can up the mountain before the bee thing is gone then kill all the enemies and get to the queen
After you complete world 5 you will unlock a secret world,world 6.The last galaxy in that world is a surprise I won't tell. :)
Supermassive Galaxy
She is in Super Mario Galaxy 2. At the end of Grandmaster Galaxy-World S;there is Rosalina.
You have to beat bowser for the final time then at the end you get world s and then you have to get loads of stars to play each level
You meet him a lot on different galaxies, but when you beat the last level (i think) you can play as Luigi any time!
it is the last world in the game
Around world 3 tall trunk galaxy he shows up at starship Mario and you can play him when you see him in a galaxy. But if you want to play him on any level, you have to beat the game and then go in the door at the bottom of the main platform.
You get every green star.
you compute it
No
You have to spin attack his red spots on his body when he digs through the ground.
Defeat bowser at the end of bowsers galaxy generator.