The Best Episodes Written By Paul Mcevoy

A headless man from Grim's past uses Billy to steal Grim's scythe.

After Grim's robe comes out of the washing machine, Billy and Mandy find Thromnambular, a talking skull with ruby eyes and a number nine imprinted on his forehead. Grim tells them that the skull is a magical artifact imprisoned on Earth that must grant his nine wishes to be free. When Mandy asks Grim why he has not used any of the wishes, Grim tells her that the skull will corrupt the wishes and end up affecting the wisher.

After stealing a tangerine (orange) and watching it split up into different pieces the Amoeba Boys learn how to multiply and make duplicates of themselves.