For a walkthrough go here: http://www.cheatcc.com/ds/sg/super_mario_64_ds.txt
There's 150 power stars in Super Mario 64 DS.
Collect all 120 stars and go to the cannon outside. If you are playing super Mario 64 ds get all 150 stars and go to the cannon outside.
You must collect all 150 stars, then it will automatically open.
There is a total of 150 stars on Super Mario 64 DS.
There are only 120 stars in super Mario 64.
When you get 150 star you go outside with luigi and go to the cannon, then go on top of the castle and get the rabbit
There are really 151 Stars, but only 150 are counted.
Collect all of the stars. 120 for the Nintendo 64 version; 150 for the Nintendo DS remake.
You can't get 1000 stars you can only get 150 stars.
There are only 150!
Get all 150 stars
any number of stars with luigi or all 150 stars