Even though the popular Cartoon Network series Adventure Time’s long fifth season — comprised of 52 episodes that started rolling out in November 2012 — wrapped up just last month, that’s not going to prevent its legion of hardcore fans from eagerly anticipating tonight’s sixth-season premiere. And there’s more to look forward to: On Saturday at WonderCon, creator Pendleton Ward and chums revealed that Japanese anime artist Masaaki Yuasa has written and directed a standalone episode, titled “Food Chain,” set to air in June. Cartoon Network generously offered Vulture the opportunity to present the clip exclusively, which we greedily accepted as if it were a prized viola — or an exclusive clip from a fantastic animated program.