Super Mario 3D Land
Grand Tail Goomba first and so far only appears in the game Super Mario 3D Land.
In the game, this foe can attack Mario/Luigi with its tail by swaying it. It first floats in midair and then lands down and sways its tail. The distance varies though. As they are larger, their tail swings more far. Because their size has to fit inside the 3DS screen in this game, their size had been cut down to be a little more tall than a regular Goomba and a Tail Goomba.