Random dude: "Hey, look it's a turtle"
Koppa turtle: "No, I am a Koppa turtle"
Random dude: "Right...."
— A guy talking to a Koppa turtle

The Koopa Army was a unified military force made up of weird turtle creatures that were led by Bowser. The army was created for the sole purpose to serve Bowser's independent crime empire. The army's most notable achievement was successfully taking over the Fire Nation while Luigi was reigning as Fire Lord. Of course, Mario eventually regained his Fire Lord position and proceeded to completely expel the koopas from the Fire Nation. After they were removed from the Fire Nation, Bowser joined the racing industry these guys became his pit crew.

Special abilities: Walking off cliffs