How do you get the Star Road in Donut Ghost House?

To beat donut secret house #3: There are two endings. The first will take you to star road, the second to a pipe that leads to Donut Secret 2. 1st ending, go through the rooms until you come to the one with a P switch in it, and then carry it back towards the coin outline of the door, press it, watch out for the ghost guarding that spot, and enter through that blue door for the ending. 2nd ending, do the same as above, find the p switch, grab it, BUT DON"T PRESS IT YET, you need to know that the yellow blocks that are surrounding a door is very important. Move the P closer to that spot. Hit the P, move to the yellow door, CAREFUL NOT TO PRESS UP, hit the yellow block directly above this, and you will see a vine, climb it fast and you will see a hidden blue door. Once inside, big boo tries to hide from you, grab the blocks and position yourself under him and throw the blocks up at him. Do this three times and you beat him. Carefull not to remove all the blocks from one colum, you will fall through and die!

To get to the fortress you need the Key for Valley of Bowser 2: After you go through the pipe at the END OF THE MAZE, you come to a new screen. The yellow wall will be moving up and you will need to get out of there! But, stand on the outside edge of the yellow wall as it's moving up, and jump over the tall green wall, keep running the length of the green wall (you won't be able to see yourself), and then you will fall off the green wall onto a platform, which has your key. Then, this will open up Valley Fortress.