Gloomba

From Mariopedia

A Gloomba is a subspecies of Goomba that is colored dark blue and has red feet that lives underground. It is essentially a "Dark" Goomba. They are found throughout the Paper Mario series. They are only found in certain underground places like the Pit of 100 Trials. They are stronger than a Goomba but has the same attacks. There are several variations including the Paragloomba and the Spiky Gloomba