Black fungus

A Black Fungus has a spherical, pitch black head with two glowing yellow, beady eyes. It wears a round, purple cap on its head that sports two black, angular spirals on its front. It also seems to wear a navy blue smock that completely covers its legs and thin, fingerless arms. Its Heartless emblem is present on the front of this smock. Unlike the other Mushroom Heartless, it is very aggressive. It can become invulnerable for a short time to defend itself and release poisonous gases, making it very hard to defeat