All you have to do is get nine stars and go into the room behind the rec. room then you jump in the painting of Mario and find goomboss. Then destroy goomboss by eating his minions and spitting them on his back. Then after three lives he will explode and the key will come flying out. p.s. I don't know how it got in his body!
Sometimes, one of the rabbits will be seen glowing silver. The eighth glowing rabbit you catch will give you the key to the white room. (The glowing rabbits will stop appearing after that.)
Yoshi has an easier time finding glowing rabbits than Mario, Luigi or Wario, because there are three of them on the bridge in the castle grounds, and they reset every time you leave the area. So, as Yoshi, just keep going in and out of the front door until you find a glowing rabbit!
check the game guide on IGN...........its on the course Big Boo's Haunt :P
open a door with a lock in the area you obtaned the key in
Just take it to a locked door.
No, that would be the door that you get a free star in for finding the secret key in Peach's Castle.
You need to defeat Bowser in the room that has the tap floor, then you will get a key that unlocks the downstairs door.
Fight all of the enemies until eventually one drops a key. Bring the key to the door randomly positioned in the room, and use it.
if you captured all the rabbits they will give you a key to open that door and that door contains a star
you must defeat bowser in the first battle against him
If you mean that door in the rec room in Super Mario 64 DS with the number 8 on it, you just need to get 8 stars and then it will open. The course with Goomboss, who holds the key to the room where Mario is locked, is behind this door.
Go in the bushes, then you'll see a rabbit with a key. Just use your tongue and grab him, and he will give it to you.
Beet bowza
yes