Mighty is an average height Mobian nine-banded armadillo with black fur, blue eyes, long ears and red armor. He wears white gloves and red shoes similar to Sonic's.

Mighty, similar to Sonic is more on the hard shelled side. He is a loyal friend. Wherever Mighty goes Ray follows and Mighty will do whatever it takes to keep his best friend safe, even giving up a Chaos emerald 

Mighty has various spin attacks and can use this to wreck any substance. His shell can also be used in various ways, for protection and smashing through things.

Not much is known about Mighty's past... for now.