Preheat the oven to 350 F. In a large bowl, mix cake mix with eggs and vegetable oil until smooth. Divide the cookie dough into two bowls. Mix green food coloring into one and blue into the other.
Fold 1/2 cup chocolate chips into each cookie dough. Take a small amount of cookie dough from each and roll together into balls. Place onto a large ungreased baking sheet at least 2-inches apart. Bake for 10-12 minutes.