Dharkon

Dharkon is a boss character introduced in Super Smash Bros. Ultimate. He serves as one of the main antagonists in the story mode, World of Light, alongside Galeem.

Dharkon is the dark and destructive counterpart of Galeem. While Galeem wishes to cover the world in eternal light, Dharkon seeks to destroy all life, drowning it into pure darkness.

Appearance
Dharkon's appearance consists that of a large, demonic eye that floats around the center, surrounded by a multitude of tendrils. Throughout the battle, Dharkon changes form by manipulating its mass and shape, using the tendrils that surrounds it.

Story
Prior to the main events of the game, Dharkon has been in conflict with Galeem for many years, due to their conflicting natures. Eventually, Dharkon returns once more after Galeem is first defeated to settle scores. Leading an army of Crazy Hands, he continues to wage his war against both the fighters and Galeem, who happens to lead an army of Master Hands.

If the player fights and defeats Dharkon alone, Galeem will deliver the final blow on him, destroying his entire body, then proceeds to cover the world into light once more. If Galeem is defeated, however, Dharkon will be the one to finish off Galeem and proceed to destroy all life with darkness.

In the true ending of the game, both Dharkon and Galeem are defeated by the fighters as their bodies shatter and sink down into the ocean, ending their conflict once and for all.