WARNING DON'T READ THE FOLLOWING IF YOU DON'T WANT TO KNOW WHAT HAPPENS AFTER 240 STARS
This is the very last galaxy of the whole game. Once you've gotten every 240 stars this galaxy is unlocked. This galaxy has many mechanics from past galaxies and mechanics from the origional Super Mario Galaxy. This is also the hardest galaxy in the game. I really like how it has many combinations in all of the planets. The pull star path returns in this galaxy, various soundtracks from Super Mario Galaxy return in this level, and you only have 1 piece of helth in this galaxy. AT the very end of this galaxy you land on the small planet the Gate is on from Super Mario Galaxy that has the star and Rosalina standing by the star. When you talk to her she gives you thanks. When you get the star and return to Starship Mario, Rosalina stays on your ship.
This is the very last galaxy of the whole game. Once you've gotten every 240 stars this galaxy is unlocked. This galaxy has many mechanics from past galaxies and mechanics from the origional Super Mario Galaxy. This is also the hardest galaxy in the game. I really like how it has many combinations in all of the planets. The pull star path returns in this galaxy, various soundtracks from Super Mario Galaxy return in this level, and you only have 1 piece of helth in this galaxy. AT the very end of this galaxy you land on the small planet the Gate is on from Super Mario Galaxy that has the star and Rosalina standing by the star. When you talk to her she gives you thanks. When you get the star and return to Starship Mario, Rosalina stays on your ship.