Prepare pie crust as directed for a one crust pie. Melt 1/2 cup mini chocolate chips in the microwave for about 1 minute. Stir until smooth. Stir in sugar, 1 cup frozen whipped topping and beaten eggs. Pour into unbaked pie shell and bake for 28 minutes at 350°. Cool 10 minutes; refrigerate for at least 2 hours. Top with sliced bananas and remaining whipped topping. Garnish with mini chocolate chips.