You have to first get all the normal/grand stars (no help from rosalina or your gonna have to do that level again to get the normal star, not the bronze star) before unlocking the green stars.
you have to get every star, green star, prankster comet and comet medal
There is no star mushroom in Super Mario Galaxy 2.
To get green stars, you go through each level and look for green stars. You can also listen for the star "sound."
You can't get the red star in super mario galaxy 2
Near the end,where the sun comes in sight, do a right. ON top of a mountain.
It does once you unlock Yoshi in Yoshi Star Galaxy.
when you get to the galaxy listen carefully when you hear a beatiful tinking sound use the camera and see if you find it.
It is the trial galaxy. You need to get 3 green stars. 1. In a dusty dune level. secret pyramid. need to feed star. 2. buble breeze galaxy the pipe. 3. after unlocking luigi, he finds a star. Get his letter.
No
You see it in the second power star in Boo Moon Galaxy.
The Red Star powerup from Super Mario Galaxy is not in the sequel.
there red