Goomboss

The Goomba King is one of the first bosses Mario and Goombario fight in Paper Mario. He is accompanied by Red Goomba and Blue Goomba. The easiest way of defeating him is to hit the Goomnut Tree to make Goomnuts fall on him, doing 3 damage.

He also appeared in Super Mario 64 DS. Yoshi had to defeat him by eating Goombas and spitting them back at him.