Koopa Paratroopas are a species of Koopa Troopa that appear in a few Yoshi games, but originate from the Mario game. They can be attacked like normal Koopas, but they can fly. If Yoshi does a jump on it, they will lose the wings they have. As said in one game, Paratroopas with out wings are very sad Koopas. Red shell Koopas fly back and forth, and the green ones jump to the player. They appear in Super Mario World 2: Yoshi's Island, and Yoshi's Island DS. Green Koopa Troopas always jump unitl they bounce off a wall or jump into a ditch. Red Koopa Troopas are smarter though, as they turn back the other way when they reach the edge of an abyss.