Measure crisped rice cereal into a large bowl.
Mix white sugar and corn syrup in saucepan. Heat over medium-high heat until sugar is melted. Remove from heat and stir in peanut butter.
When peanut butter mixture is smooth, pour over cereal. Stir quickly to mix before the cookies start to set up.
Pour cookies into a baking pan and smooth evenly.
Put butterscotch and chocolate chips into small mixing bowl. Melt in microwave for one minute, stir to help melt, and repeat until fully melted and smooth. Spread over cookies in the bking pan.
Allow to cool completely before cutting and serving.