Using a mixer or food processor, combine milk, pudding, and cream cheese. Whip until smooth.
Fold in 3/4 of the Cool Whip.
In a glass bowl put down a layer of wafers. Use 1/3 of the pudding mixture on top of the wafers. Put half of the blueberries on the pudding mixture. Repeat. Combine the remainder of the Cool Whip with the pudding and put on top. Chill at least 2 hours before serving.
If you would like to reserve some of the blueberries you can put them on top for decoration.