1. Preheat oven as directed on cake mix. Grease a 9x13 pan.
2. Prepare cake as directed on package and bake.
3. As soon as it is out of the oven, combine the boiling water with the Jell-o.
4. With a long tined fork or skewer, poke holes all over the cake.
5. Slowly pour the Jell-o over the cake so it is absorbed into the holes.
6. Cool completely.
7. Mix together the pineapple, instant pudding and dessert topping.
8. Spread over the cake.
9. Refrigerate cake before serving.