You know how to roll. You know how to jump. If you want to long jumo. Do a roll, and while rolling, jump. You will not jump as high, but you will go farther. And, as a plus, for some reason, if you fall a long distance, you will not take any damage. If you want to take a shortcut and jump of a cliff to the exit of a stage, but know you will die when you land. Do a long jump, and you will not take any damage at all.