Grease a 13 x 9 inch pan and set aside.
Place sugar and corn syrup and butter in a large saucepan. Cook over medium heat, stirring frequently, until the sugar dissolves and mixture just starts to get bubbly.
Pull off the heat and add one cup peanut butter. Stir till smooth.
Quickly add your cereal and stir until well coated. Press mixture into prepared pan (I butter my fingertips and press, or waxed paper will work also).
Melt the chocolate and butterscotch chips together either over a double boiler or in the microwave at 50% power in 30 second increments, being careful to stir well in between.
Spread evenly over cereal mixture.
Let sit until firm.You can refrigerate for a faster sitting time, however, you may wish is cut the bars before they get too firm.