The slime, the bonus rounds, the prize trips to Space Camp. These were the things dreams were made of. For years, Nickelodeon imagineers devised new ways to enter video games, explore Mayan ruins, and splatter pies into your father’s face. Since their early days of broadcasting, Nickelodeon has countlessly found ways to tap into the kid-fantasy zeitgeist. Ask anyone from our generation and they’ll tell you: “Always pick the physical challenge.”