Preheat oven to 350° F and line 2 cookie sheets with parchment paper.
Combine cake mix, egg, cream cheese, and butter together in a large bowl until smooth. This will take some stirring and it will look dry at first. Keep stirring until it is fully mix and no cream cheese or cake mix spots remain.
Scoop into 2 tablespoon balls and roll between palms to smooth.
Place 9 cookies on each tray and bake, one tray at a time, for 14 minutes.
While cookies are baking, unwrap 18 Hershey Kisses.
Let cookies cool for about 2-3 minutes then top with Hershey Kiss.
Repeat with remaining tray of cookies.