Dharkon

Dharkon's appearance of being an organic mass of tentacles resembles Azathoth, a being featured in the Cthulhu mythos. Along with his single slitted eye.

He is described as the "Embodiment of Chaos and Darkness" in the World of Light. His goal, similar to that of his light counterpart Galeem, is to corrupt the universe in his own image.

After Galeem's first defeat, Dharkon appears from a portal in the sky, commanding an army of Crazy Hands. After the Crazy Hands briefly fight Galeem's Master Hands and win, Galeem proceeds to flee. Dharkon proceeds to take control of the remaining captive fighters and Spirits and creates a world of darkness.

Dharkon is summoned following the defeat of Ganon, Marx, and Dracula in the Dark Realm. Following Dharkon's first defeat, he proceeds to flee into the final world, with Galeem following soon after. In the final world, Galeem and Dharkon wage war against each other, but are also seeking to destroy the fighters.