Koopa Troopa appears as a common enemy in the Super Mario series. Marching across the terrain, Koopa Troopa constantly tries to catch Mario before he can rescue Peach, but cowers away in his shell when Mario steps on him. A pretty good defense tactic, actually, 'cause Mario might forget where he is, possibly.
Koopa Troopa is a playable character in five of the eight Mario Kart games, first in Super Mario Kart (1992), and then skipping around until his latest game, Mario Kart 8 Deluxe. He is always in the Light Class.
Koopa Troopa is one of Bowser's allies who tries to stop Mario in his quest to save Princess Peach. However, some Koopas aid Mario on his quest, like Koopa The Quick in Super Mario 64. Koopa Troopa sports green boots. His legs, arms, tail, and head are all yellow in color. He has bright, white eyes, and he is encased in a green shell. Koopa Troopa is mad that other racers use Koopas as items. He is a great driver, too.
- Koopa Troopa took a break from racing until 2003, and was reintroduced in 2008.