Prepare the chocolate pudding according to package directions and allow it to set up in the fridge until thickened.

Prepare the creamy white layer by adding softened cream cheese, powdered sugar and Cool Whip and mixing with an electric mixer until smooth and creamy.

In a plastic or glass cup, first add a big spoonful of crushed Oreos, then spread a big spoonful of chocolate pudding over. Next, add a big spoonful of the creamy white mixture and spread. Then add another big spoonful of crushed Oreos, followed by another big spoonful of chocolate pudding. Finish each cup with a little sprinkle of crushed Oreos and then Halloween sprinkles and candy gummy worms. Place in the fridge until ready to serve. If you're going to wait to serve them, be sure to wait to add the gummy worms until just before serving, so they don't harden in the fridge.