Shell

Shell may mean:


 * Green Shells, the most common type of shell, worn by Koopa Troopas.
 * Red Shells, a special type of Koopa Troopa shells.
 * Blue Shells, rare shells that have the power to home into other drivers.
 * Yellow Shells, extremely rare Koopa Troopa shells that can make Yoshis heavy.
 * Black Shells, explosive shells that are found only in Mario Kart Arcade GP.
 * Bowser Shells, large shells that can only be obtained by Bowser and Bowser Jr..
 * Shells worn by various other Koopas.
 * A prototype name for the Wii Classic Controller.