Crypto is a void entity from the underworld. He can summon radios and boom boxes to blast his foes with high pressure sound waves. He can also manipulate sound waves to mind control people. His Guitar can turn into a battle ax or a sound cannon. Crypto is a classy, yet cruel warrior who is not afraid to silence any who stand in his way, even if it means killing them, to get what he wants. He is sworn enemies with Opal, though he sees her as a minor nuisance and a joke.