Icky is a large gastropod resembling a slug. He absorbs energy directly from his surroundings, understands several languages, and communicates through patterns of electric buzzes. If he doesn't absorb the natural energy of Aquari-Yum, the site boils over. Besides, he needs to feed on energy to survive, otherwise he'd shrivel up to nothing. He can also camouflage himself. Icky appears on The Quest.