In a large bowl, mix cake mix with 1 egg and oil until crumbly, reserve 1 c. of mixture for topping. Pat remaining mixture in the bottom of an un-greased 13x9 inch pan. Bake for 15 minutes.
Beat cream cheese, sugar, lemon juice and 1 egg until smooth. Spread over baked layer. Sprinkle with reserved crumb mixture. Bake 15 minutes longer. Cool and cut into bars.