Completed Super Mario Galaxy

Cool. I completed Super Mario Galaxy's "Centre Of The Universe" yesterday. COOL COOL COOL COOL COOL~~!! Now there's not much meaning of saving anyone, Mario, because you've already saved Princess Peach. But, *sigh* she's managed to get lost again, how do i noe? Coz she sends me 5 1-up mushrooms by the mailtoad saying the "i'm l lost, hope these mushrooms come in handy!" shit again... ah well, at least I get 5 1-up mushrooms!!! Anyway, I completed the whole storybook, and I have to get 58 power stars to unlock a brand-new universe. Or at least that's wat Rosalina a.k.a. Mama says so...