Pour Rice Krispies into a large bowl and set aside.
In a medium pot over medium-high heat, bring sugar, peanut butter, and corn syrup to a boil, making sure to stir constantly.
As soon as the mixture starts to boil, pour over the cereal and mix well. Pour into a greased 9-x-13-inch pan and gently press down with a spatula to spread evenly into the pan.
In a small pot, melt chocolate and butterscotch chips together over low heat, stirring constantly.
Pour over pressed Rice Krispies and let set for at least 30 minutes before cutting and serving.