Cream butter and sugar in a large mixing bowl. Beat in eggs and vanilla.
Whisk together flour, soda, baking powder, and salt in a small bowl. Add to creamed mixture and stir gently. Add cereal, Kit Kats, and chocolate chips. Stir till well combined.
Roll dough in balls and place on lightly greased or silpat lined cookie sheets.
Bake at 350 for about 10 minutes. Cool for about 3 minutes on the pan, then remove to cooling racks.