Mega Goomba (boss)

Mega Goomba is the boss of World 4 in New Super Mario Bros.

Before the batte, a regular Goomba gains access to a Mega Mushroom and becomes Mega Goomba. Mario must defeat this boss to acquire the key tha provides access to World 5.

To defeat Mega Goomba, Mario must activate a switch, causing two platforms to appear. When Mario stands on the platform, it will elevate in the air. From there, Mario can either wall jump, or jump directly on top of the Mega Goomba. For the attack to be successful, Mario must ground pound the Goomba (unless he is Mega Mario).

Once Mario hits the Mega Goomba three times, the Goomba will die, and Mario can get the key to World 5.