Just a shine spirte. And yes you are doing all this work for just a shine spirte.
enter the 32 Star-Coin door to toggle between Mario and luigi
On what level?
Yes
in your neck
the catle how do you get a star and sunshine
enter the 32 Star-Coin door to toggle between Mario and luigi
The Mush-Room. It's a big room with a lot of 1-UPs in it.
On what level?
by paying 5 star coins
Yes
in your neck
the catle how do you get a star and sunshine
By getting every single Star coin
knock down all of the star coin signs
you beat the game and collect every star coin
Nothing, the only thing you can do with the star coin it's to buy the video in Peach Castle.
You have to defeat Bowser in the 80 star door on the 4th floor