Something Stupid This Way Comes / A Grim Surprise / Beasts & Barbarians

S1, E5: "Something Stupid This Way Comes" Nergal returns, trying to win friends with a giant carnival. Billy takes up his cause, revealing to Nergal the five C's of friendship. "A Grim Surprise" Billy and Grim plan a surprise birthday party for Mandy, only to succumb to a surprise of their own. "Beasts & Barbarians" Billy and Irwin are addicted to the video game "Beasts & Barbarians." Mandy and Grim work to cure Billy and Irwin of their addiction by venturing to another dimension to give Billy and Irwin a taste of "the real thing."