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The Spin Dash is Sonic's side special move in Super Smash Bros. Brawl and Super Smash Bros. for Nintendo 3DS / Wii U, based on the move that he has had in the Sonic the Hedgehog series since Sonic the Hedgehog 2. Rather than rapidly pressing the button like in the Sonic games, the Spin Dash in the Super Smash Bros. series instead charges by holding down the special attack button. Sonic curls up into a ball as the move charges, and when the button is released Sonic charges forward, damaging any enemies in his path while doing a small hop at the beginning. The player can change the direction of the dash by tilting the control stick in the other direction. Players can also jump while dashing by pressing any button.
In Super Smash Bros. for Nintendo 3DS / Wii U, the Spin Dash has two custom variants that can be unlocked: Hammer Spin Dash and Burning Spin Dash. Hammer Spin Dash causes Sonic to leap into the air and slam the ground upon dashing, burying any opponents beneath him, though the move does not have as much attack power. Burning Spin Dash has a fire effect, but does not have the hop at the beginning of the move.