If you jump into a wall just right, you can "catch" the wall with your foot, and you'll be able to jump off the wall! You can use this technique at the beginning of World 6-9 to skip over most of the level. Have small Mario run and jump off the ice blocks into the wall of ice. When Mario touches the wall, jump again and he should make it over the top. Go right and you'll find the end of the stage! Note: This glitch requires a perfect jump and good timing.