Goomba Tower

Goomba Towers are Goombas stacked on top of each other (ranging anywhere from stacks of 2 to stacks of 10) that first appear in Super Mario 3D Land.

Super Mario 3D Land
Goomba Towers attack by running at the player and attempting to hit him or her in a similar fashion to individual Goombas. Goomba Towers can be shortened or defeated depending on how many Goombas the stack has. For example, attacking jumping on a stack of 4 will reduce it to a stack of 3, and so on. Alternatively, they can be killed all at once with a Ground Pound or as Statue Mario in statue form. They can be defeated one-at-a-time by being jumped on, being hit with a fireball, or whacking them with Tanooki or Statue Mario's tail.

Two Goomba Towers are seen in Peach's Letter when they try to attack Princess Peach. Peach manages to hit the Goomba Tower using her parasol. A Goomba Tower is seen chasing Peach with Bowser and his other minions.

Mario Party 9
Goomba Towers appear in Mario Party 9 in the Goomba Spotting minigame, where players attempt to count the total number of Goombas that run across the screen as accurately as possible. Sometimes, Buzzy Beetles appear at the tower to trick the players into tallying them.

New Super Mario Bros. 2
Goomba Towers reappear in New Super Mario Bros. 2, where they appear to be stacked up even higher than before.