Triple Green Shell

The Triple Green Shell is a cluster of three Green Shells that debuts in Mario Kart 64, and appears in every game up until Mario Kart Insanity. Its successor is the Quintuple Green Shell, which debuts in Mario Kart: Halfpipe Frenzy.

Koopa Kart series
The Triple Green Shell appears in every game in the Koopa Kart series staring from Koopa Kart 64, serving the same role as in Mario Kart, although the Green Shells trail behind the kart like a Triple Banana or a Banana Bunch. In most games, it can be obtained from 2nd to 5th place, while in Koopa Kart Wii and Koopa Kart 8, it is obtainable from 3rd to 7th place.