Koopa Strikers appear in Super Paper Mario. Sometimes known as "Soccer Koopas", Koopa Strikers are a type of Koopa that will place a Koopa shell with designs similar to a soccer ball, and kick it. If you jump on a Koopa Striker, it will hide in it's shell (Which also has designs that resemble a soccer ball), which you can then kick yourself. Stronger versions are Toopa Strikers, and Soopa Strikers. A Koopa Striker also appears in the minigame Hammer Whacker.