If Scooby and the gang are on the case, it’s a good bet that “Z” stands for “Zoinks!” But in this collection of episodes gathered for your scarily fun viewing pleasure, “Z” stands for …. “Zombies!” So before you scream “Jeeper, It’s the Creeper,” grab a Scooby-size snack and get ready for a frightfully good time. If you don’t believe us, just remember: “Mummy Scares Best.”