Koopa Shell

A Koopa Shell is an item in the Mario Series. It's first game was Super Mario Bros., where a it would be over a Koopa Troopa, if you jumped on it, the shell would be avaible for you to kick around and either help or hurt you. After that game, it went on to play a major part in many other Mario Games such as Super Mario Bros. 3 and Super Mario World. Most notible, is it's appearance in the Mario Kart Series, where it is avaible as a projectile. In the Mario Kart Series, if you drive over an item block, you may get a Koopa Shell. When you do, you are able to toss it at other players. If you get a red koopa shell, it will follow a player instead of going straight foward.

The Koopa Shell has also appeared in almost every Mario platformer other than Super Mario Sunshine. In Super Mario Bros. 2, it might come out of a plant when you pull it out, and in Super Mario 64, you will be able to ride on it.