Big Boo's Balcony

If I remember correcly, I was able to get onto the Boo's Balcony by either doing a Wall Jump or a Triple Jump. It took me a very long time to get there as well. I would recommend you to keep trying. Hopefully, you'll get it soon. If your not able to get to it, try searching for a Video or Walkthrough on the Internet.

Hope this helps!

At the start of the level walk into the house and go upstairs. Enter the far door on the right which should lead you to a room with two book enemies that give you blue coins. (Thers also a red coin in the room with a trap door on the ground next to it.) By the bookshelf jump onto the ledge and start at the very back run and jump twice to give mario height then wall kick and grab onto the platform above. Walk through the door and there will be a blue ground pound coin thing. Go out the door on the right and kill boo. The next part gets difficult. If you are trying to ubtain this star line mario up to preform a long jump onto the far window legde.(There are two of them on either side if thats not clear they're the two skinny flat pieces on top of the windows.) After you get here change view to 1st person and line up the next jump. After it's lined up move back so you can get a small headstart.(Your going to need it it's not a big legde.) Be sure to aim near the corner closest to where the legde and wall meet .Run and preform a longjump to the ledge with the star you may have to run and jump after you land but you should be able to make it. And there you go just grab the star just don't fall off the house or youll have to do it again.

Wall kickin onto the ledge from on the top right, is hardes than explained, try, try, and try again. Try wall jumping and pushing the controller to the left. It's a tricky muanuver