Shell

Shell may refer to:
 * The shells worn by Koopa Troopas, including:
 * The Green Shell, the most common type of shell.
 * The Red Shell, the second most common type of shell with a variety of extra attributes, such as the ability to target the nearest racer on the Mario Kart series.
 * The Blue Shell, a less common type of shell which can be worn by Mario in New Super Mario Bros..
 * The flashing Shell, an enemy Koopa Troopa shell that flashes a rainbow of colors.
 * The Gold Shell, a unusual type of shell that made its debuts in Super Mario Galaxy often related with Coins.
 * The Black Shell, a rare shell which appears as an item through the Mario Kart Arcade GP series.
 * The Yellow Shell, another rare type of shell which gives a special ability to Yoshi in Super Mario World.
 * The blue Spiny Shell from the Mario Kart series.
 * Shell, an item in Donkey Kong Country 3: Dixie Kong's Double Trouble!