Mario Re invented: Goomba 1

For a side project I decided to make characters from the super mario brothers universe somewhat realistic/comic bookish and give them backgrounds and stories that make sense. For example..why are goomba's evil, why are they called mushroom people?

The Goomba is one of Bowsers groupings of troops. They are more lackeys as the Koopa Troops are the primary, stronger army.
Goombas are very dangerous beings that stand about as tall as Toad people, which is roughy 4 feet tall.

Goombas were once normal toad citizens of the mushroom kingdom until Bowser engineered a virus that attacked that specific group of people, making them vicious, deadly zombies under Bowser's control. The virus caused their arms to shrivel up and fall of, while they grow large protruding fangs from their lower jaws and their skin turns a tanish brown color. Goombas have roughly 3 rows of tiny sharp teeth.
They are very stupid and completely loyal to Bowser and his armies once infected.
They generally attack by biting and head butting.
Once a Mushroom citizen is turned into a goomba, the process is not reversible, meaning the only way to stop them is by stomping them. They are generally easy to destroy if you are able to get close enough without being damaged.