Go to world 1-3 and find a potion. Now find the vase next to the brick building all the way to the right side of the level. Drop the potion and go into Sub-Space and then warp into the vase (stand ...

When you're about to lose a life, whether by getting hit by an enemy/obstacle or fall into the void, pause just when Mario about to leave the screen and then reset the game. You'll be right back ...