Grim for a Day / Chicken Ball Z After a lousy night for Grim, Billy and Grim argue about who has the hardest time, the kid or the Reaper of the Souls. Mandy shouted at Grim and Billy to "SHUT UP!" first, but then she proposes they switch places for the day to find out. Grim seems to be having a good time, acting like a silly kid, while Billy is bored waiting for his old victim, Mr. Voorhees, to open the door. Billy transforms into a short skeleton, while Grim transforms into a taller version of Billy. Grim's refusal to help Mandy win a karate tournament and the $50,000 prize it promises to the winner leads her to a curiosity shop, where the shopkeeper, Kuan Ti, gives her an ancient "Chicken Ball" which, when eaten, allows her to become a great fighter. Mandy easily wins the tournament and does not care about the money anymore, only about fighting. It turns out Kuan Ti is actually Eris in disguise, and this was just another of her schemes to create chaos. Seeing how Grim has a chance to get rid of the kids and finally be free, he tries to take advantage of this by making Billy a superb fighter too, so he and Mandy can fight ferociously to the death until the entire arena is destroyed. With both still alive, Mandy still demands the prize money, which she uses to buy Hector Con Carne's Bunny Island.