Koopa Troops are characters from the Mario games. They appear as enemies in Super Smash Bros. Brawl. They are one of the three teams in The Subspace Emissary along with Subspace Army and R.O.B. Squad. This team includes

Hammer Bros, Bullet Bills, Goombas, Giant Goombas, Koopa Troopas and Koopa Paratroopas. Koopas and Paratroopas come in green or red. Greens fly up and down. Reds fly from side to side. They attack by headbutting. Koopas attack with a different attack, however, both have high knockback. Goombas and Giant Goombas attack with a high knockback headbutt. Hammer Bros continuously throw hammers, and Bullet Bills fire themselves at players. All enemies are weak except Giant Goombas. Except Giant Goombas all enemies can be captured by just throwing the trophy stand even on intense. Red Koopas are only available if you knock a Paratroopa off its wings. If capture it at this time, you'd get the Red Koopa trophy. Giant Goombas need weakening and can be defeated by attacks or 9 or more jumps on them. Weaken the Giant Goomba the capture it. Giant Goombas are rare. They can be found in The Jungle and The Cave levels and a few more.