wut r the places 2 find all 3 green stars?

The first one is in battlerock and you have to save Luigi, he is under the sucer, get
bullet bill to follow you and smash the cage.
The second one is in the Buoy base and get the bullet under water and you'll see something
green get the bullet to smash the cage and go in the warp pipe and do the same thing with
the first green star.
The last is in the Dusty dung galaxy and look for the Hungry luma under the platform where
the 2 crystals are with star bits and feed it 20 star bits it'll transform into a planet
then you have 2 find the five silver stars.

in the galaxy after the first bowser fight i cant find all the star bits

and no comment on the first bowser thing ok

What do you mean you can't find the star bits

He means stars

played the game as mario and luigi collected each 120 stars but how can i go to the final
star?

? star on deep dark galaxy and gusty garden galaxy