Spin
Spinning is a move that Mario (or Luigi) can perform in Super Mario Galaxy, New Super Mario Bros. Wii and Super Mario Galaxy 2. It is done when the player shakes the Wii Remote (or Nunchuk for left-handed players). The move is slightly similar to a Spin Jump except that it can also be done on the ground. It can be used to reflect projectiles flying at Mario, stun enemies, activate switches, swim faster, and even pick up nearby items. Mario also ascends very slightly whenever he does a spin.
Mario is able to do a spin because of a white Luma given to Mario by Rosalina. Whenever Mario does a spin, Luma pops out of his hat for a second. Mario can only perform a spin once in the air. He must touch solid ground before he can use the ability again. Even on the ground there is a slight recharge time for this move. When Luigi uses this move, a slightly longer recharge time is required.
An extremely useful application of the spin is the ability to stun, freeze, or make enemies dizzy by spinning into them. This gives Mario a chance to escape or attack the enemies if the player is fast enough. Spinning is needed to defeat some bosses.
If Mario spins in midair and immediately ground pounds, he will spin and then home in on nearby objects or enemies. Additionally, if he is crouching and then spins, he will do a pirouette similar to a dance move. When riding Yoshi, the spin becomes a Headshake.
It also appears that after his first defeat in Super Mario Galaxy, Bowser took note of Mario's spin move and made the Dark Spin. He also took note of his Side Somersault.
In New Super Mario Bros. Wii, the Spin move returns, as previously mentioned. In this game it is performed by shaking the Wii remote, just like in the previous game, and it can help the player give the extra boost to get over a gap.
Mario also uses his spin move in Mario & Sonic at the Olympic Winter Games where it is his Special Skill.