Goomba

1st appearence: Super Mario Bros.

Origin: Goombas were once citizens of the Mushroom Kingdom. But as portrayed in Super Paper Mario, Goombas prefer to join the winning side. A theory was formed that they joined Bowser because he was the "winning side."

Advantages
Bravery: Goombas are not afraid to go into battle unprepared

Running: A Goomba can run at moderate speeds to knock Mario over

Disadvantages (weaknesses)
Head Strentgh: A Goomba can simply be killed by jumping on their head. This is why Goombas are so pathetic

Stupidity: A Goomba has no concern for what is in front of him. Which usually ends with them walking off a cliff