Spray a 9x13 pan with cooking spray. In a pot over medium heat, combine corn syrup, peanut butter, and sugar. Heat until melted and sugar is dissolved. Don't overheat! You can also combine ingredients in a large microwave safe bowl and microwave 30 seconds at a time, until sugar is dissolved.

Stir in rice crispy cereal. Spray hands with nonstick spray and gently press mixture into prepared pan.

In a medium microwave safe bowl, combine semisweet chocolate chips and butterscotch chips. Microwave in 30 second intervals, stirring well between. Spread chocolate and butterscotch mixture over rice crispy layer. Let harden in fridge or on counter, and serve when set.