Dark Gumball is Gumball under the control of The Lucky Helmet who is the main antagonist in The Amazing World of Gumball episode, "The Helmet". Darwin made the helmet, and believed that it would make Gumball's life lucky. Which it did, but then when says that he wants to throw it away, the other members of his family use it, then it starts to tear apart his family, so Darwin and Anias decide to take it to the dump, so it will never haunt there family again. But Gumball wanted it back, so he secretly followed them to the dump to get his helmet back.