As Superball Mario, Mario is granted the ability to throw "Superballs" to attack enemies. The Superballs bounce off the walls and the flooring, similar to the Fireballs thrown by Fire Mario, but will forever do so until they go off-screen.
Superball Mario reappears in Super Mario Land 3D
Superball Mario returns in Super Mario 2D Land, but is now referred to as "Black and White Mario". Despite this name change, he has the same abilities.