Double jumping is an advanced technique in the Super Mario Bros. series that allows Mario to jump twice in a row. It is performed by pressing the A button twice in quick succession, the second time while Mario is still in the air from his first jump. Double jumping can be used to reach higher platforms, clear wider gaps, and avoid enemies.
Double jumping was first introduced in Super Mario Bros. 3, and has been a staple of the series ever since. It is an essential technique for completing many of the game’s levels, and can also be used to perform a variety of advanced maneuvers, such as the “spin jump” and the “wall jump”.