Marbled Chocolate Bars

1 box German Chocolate Cake Mix
1 pkg (8 ounces) cream cheese (softened)
1/2 cup sugar
3/4 cup milk chocolate chips, divided

Prepare cake mix according to package directions. Pour into a greased 15x10x1in baking pan. In a small mixing bowl, beat cream cheese, & sugar, stir in 1/4 cup choc. chips. Drop by tablespoonfuls over batter. Cut through batter with a knife to swirl the cream cheese mixture. Sprinkle with the remaining chocolate chips.
Bake at 350* for 25-30 minutes or until toothpick inserted in center comes out clean. Cool on wire rack. Cut into bars.