??? Koopas are the only villains that have no real name. Some people call them Copper Koopas or 1945 Koopa for some reason. They only appear in mini games as refs, bomb throwers, and just enemys. If you kill them you can get there propeller, but you can't sell it.
Strangths: Can fly
How to kill: In some mini games, you have to throw rocks at them