Cyclops - gargantuan eyeball-monster

Cyclops was a monster that appeared in the cartoon series "Mighty Max" as one of the show's one-shot villains.
This enormous four-tentacled eyeball was found lurking in a gigantic one-eyed skeleton deep below a Turkish prison. The creature was apparently fed and protected by Torak the Torturer, but seemingly met its end when it pursued Max and Norman during their escape from the prison. The creature fled back into its caverns after Max threw a flaming jar of oil at it, igniting the entire passageway as well as the creature.

It appeared during the series finale resurrected by Skullmaster, in place in its giant skeleton. It attacked Max and his friends until Norman chopped its leg, causing it to fall over. The eyeball itself attacked them until they managed to escape through a portal