Green Shell

The Green Shell is an item that has consistently been in every Mario Kart game. It travels in a straight line and bounces off walls. If it manages to hit an opponent, it will flip their kart. It has two variants: the Triple Green Shell and Quintuple Green Shell.

Koopa Kart series
The Green Shell appears in every game in the Koopa Kart series, serving the same role as in Mario Kart. In most games, it can be obtained in the top five positions, while in Koopa Kart Wii and Koopa Kart 8, it is obtainable in the top seven positions.