Spin Jump

Spin Jump is a simple technique in every 2-D Metroid game to date. Like its name says, Samus spins while executing it. It is performed by pressing the jump button while running. This results in far greater jumping distance than a normal jump, which is executed by simply pressing the jump button. In Metroid Fusion and Metoid: Zero Mission it is used to keep the Speed Booster's charge while jumping. Space Jump in 2-D Metroids can be considered a continuous Spin Jump. The technique is obviously absent in 3-D Metroids, since it would be pretty much impossible to see how far and where Samus is jumping if she was spinning while airorne, because of the first person view.