Grease a 9x13-inch dish with cooking spray. Pour cereal of choice into a large mixing bowl. Bring sugar and syrup to a boil in saucepan. Continue to boil for one minute. Remove from heat and stir in vanilla and peanut butter. Mix until combined. Pour mixture over cereal and mix well. Press into prepared dish. Melt together chocolate and butterscotch chips. Pour over cereal mixture. Spread evenly. Chill until set. Yields 10 to 15 servings.