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!” Check out episodes like “The San Franpsycho,” in which the gang travels to San Francisco where the ghost of an Alcatraz prisoner haunts a skateboard competition, and “Pompeii and Circumstance,” in which the ghost of a gladiator terrorizes tourists in Italy. Let’s hope Shaggy and Scooby can solve the mystery without getting sidetracked by all the good food! So before you scream “Jeeper, It’s the Creeper,” grab a Scooby-size snack and get ready for a frightfully good time featuring — you guessed it — zombies. If you don’t believe us, just remember: “Mummy Scares Best.”