PREPARE cake batter as directed on package. Add dry pudding mix; mix well. Spoon evenly into 12 paper-lined medium muffin cups. Bake as directed on package for cupcakes. Remove to wire racks; cool completely.
BEAT cream cheese, butter and vanilla in medium bowl with electric mixer on medium speed until well blended.
Gradually add sugar, beating well after each addition.
ARRANGE cupcakes on large serving platter or tray to resemble a ghost as shown in diagram (http://www.kraftfoods.com/pdf/GhostCupcake.pdf). Spread with frosting. Use decorating gel to outline the mouth on the cupcakes.
Finely crush 3 of the cookies; sprinkle inside mouth.
Place remaining 2 cookies on cupcakes to resemble eyes.
To make a bigger ghost, double the amount of cupcakes you make.