World 3: Ghost House This Ghost House contains a secret exit that leads to a cannon on the world map, which will blast you to World 6. Here's how to find it: When you reach the room with the rope running along the ceiling, follow the rope so you're just above the left-most position of the first moving platform (that is, where it's positioned when it's moved all the way left). Now wait for it to move away and drop off the rope--don't worry! You'll hand in a hidden area below, containing a door. Now just follow the rest of the level to the secret flag pole.

World 4: Ghost House The Ghost House conceals an alternate route which will allow you to head straight for the world's final castle, as well as hit-up a Gold Toad House along the way. To do so, head to the ghost house's second room, where you'll find the raising and lowering platforms. When you reach the one just below an item box, wait for it to drop completely, revealing a hidden door. Head on through then proceed through the last door of the area to find the secret flag pole!

World 5: Ghost House There's a hidden route inside the ghost house that, when taken, allows access to the cannon on the world map that'll blast you to World 8. So here's how you find it: Inside the Ghost House's first room, drop down the first shaft, jump the second, climb the stairs and jump the third. Drop down the shaft at the otherwise dead-end, then drop down the gap just beyond to find a door. Ignore the door and head left through a fake wall to find a second door. Head on through--this will eventually lead to the alternate exit, granting access to the cannon.

World 6-5 There's a hidden route inside this level that will take you to the world's final castle. To find it, look for a hidden block among this group of four that spawns a bean stalk--climb it and continue onward to an alternate flag pole, opening the route!

World 6-6 This level contains a secret route that will enable you to reach the cannon on the world map, which can blast you to world 8. Here's how you find it: Just before the second fire brother, you'll spot a red pipe suspended from the ceiling. Warp through it and continue onward to find an alternate flag pole.