Koopa Paratroopas are Koopa Troopas with wings. They're instantly killed when they are attacked in air, such as getting stomped (if there's a stomping mechanic in the game) or hurt by orbs. They traditionally come in two varieties: Red Koopa Paratroopas usually fly up and down or side to side in a set path, while green Koopa Paratroopas often bounce in the player's general direction. However, some Paratroopas hover left and right. Their name comes from "paratrooper", a term used in the military to describe soldiers who parachute down to attack.