where r all the 30 castle secret stars?

Maybe if people tell you all they know about you will run accross one more you didn't know about. Did you get the one behind the door when luigi goes through the mirror?

did ya get all the toad stars? what about sunshine isles?

8 red coins in the courtyard

Drainthe moat then use wario to punch the black bricks. There is a hole.jump in it. The name of this plces is secrets under the moat I think. Get all eight re coind. Then get the mario cap and fly over to this rectangular strip. Its right across from the bottom of the slide. Hit the switch and fet the power flower againand float up to get the switch star

The princess's secret slide beat it under 20 seconds
And another star pops up at the first big turn jump off the slide and back on another part.

Catch all 8 glowing bunnies. If you've got 149 stars Go to the door next to Wario's and I believe you will get Astra to make it 150. You need to have 149 stars to do this.

Go to the lake in Hazy Maze Cave. Go to the double doors. Enter the level behind the doors.. Get 8 red coins. 4 are above water. Other 4 get metal wario to go underwater and get the other 4. To get another star in the same place, be Mario and use float Mario out of the ? Box, go straight up and there will be a star.

Go to the 1st bowser level on the 2nd floor (this is NOT the tower!) Go to the pipe at the end. There is a swich by it. Step on it and a star will appear, but only for a few seconds! Thats how to get a star!

Listen go get Mario and go to the sun pad and look up and collect 8 red coins and after that a star.

No you need 2!

Have you got Wario? If so, go to Hazy Maze Cave. Go to Dorrie in the Underground Lake. Ride Dorrie to the Metal Cap Course. Get the Power Flower in the Red ? Block. Then get the red coins underwater. Then get the red coins above water. Then a Secret Star will appear. Grab the Secret Star. You now have 150 Power Stars.