Place Rice Krispies in a large bowl and set aside.
Cook corn syrup and sugar over medium heat stirring constantly until it just boils.
Take the pot off the stove and add the peanut butter. Stir until it melts and pour over Rice Krispies. Stir until Krispies are coated.
Place mixture in a buttered 9 X 13 pan. Slightly press the mixture with your hands until it spreads out evenly.
Combine butterscotch chips and chocolate chips and melt them in the microwave.
Spread mixture on top of Rice Krispies.
Let stand until topping hardens (may need to place it in the refrigerator if you live in a warm climate).
Cut into squares and serve.