1. Process cookies in processor until fine crumbs form. Transfer to medium bowl. Mix in butter. Press onto bottom of 13x9" dish. Refrigerate until needed.
2. Whisk cream cheese, sugar, and 2 tbsp milk in a medium bowl until blended. Stir in 1-1/4 C cool whip. Spread over crust.
3. Beat pudding mixes and 3-1/4 C milk with whisk for 2 min. Pour over cream cheese layer. Let stand 5 min or until thickened. Cover with remaining cool whip. Sprinkle with additional crushed oreos if desired.