To use Tails' All-Star Move, the player must have obtained an All-Star Item. When using it, Tails' vehicle gets a temporary increase in speed while one of his theme songs plays in the background. How his All-Star Move is performed depends on the game. In addition, Tails gains a special power unique to himself, which effect also depends on the game, for the duration of the move.
Sonic & Sega All-Stars Racing
In Sonic & Sega All-Stars Racing, Tails' All-Star Move is referred to as the Tails Tornado. When activated, Tails performs a barrel roll with his Tornado Racer with the press of a button, creating a massive tornado that will pull him forward while pulling in other racers and Pickup items into it, while he is slightly floating above the ground on his vehicle. The song that plays for the duration of the move is "Believe In Myself" from Sonic Adventure.
Sonic & All-Stars Racing Transformed
In Sonic & All-Stars Racing Transformed, Tails' All-Star Move is unnamed. When activated, Tails summons two miniature Tornado planes in front of him equipped with machine guns and missiles which he can use to attack opponents in front of him by pressing the Weapon button. Like all other All-star Moves, his vehicle will transform into it’s plane form. The song that plays for the duration of the move is "Invincible... No Fear" from Sonic Adventure.