MarioIke

Best answer as chosen by Asker / Ratings
O.k here goes, get a blue shell and go to level 5 in the moving blocks place, where you can get the star then stand on this ledge near the right of the little room, then run really fast, go in your shell, break all the blue boxes and go under,go through the second pipe you see, (you now should be outside the castle), then go the red flag pole after that go down that little path and you should be at the cannon all packed with your flight tickets, ready to go to world 5.