Coil is an unserious person who typically acts only in his best interests. He will rarely take anything seriously, often teasing and messing with other inphernals in order to get a reaction out of them. He loves the feeling of schadenfreude that comes with seeing misery befall others, but would never seek to harm anyone himself. Despite his "devil-may-care" attitude, he is extremely intelligent, as evidenced by his experimentation on his own gear.