Preheat oven to 350ºF. Spray 9x13" baking pan with cooking spray; set aside until ready to use.
In a large bowl, with mixer on medium speed, beat together butter and sugar until smooth. Beat in eggs, pumpkin, vanilla extract, and water, until combined.
Add flour, cinnamon, cloves, ginger, nutmeg, baking soda, baking powder, and salt, to the wet ingredients and beat together on low speed until well blended. Spread 2/3 of the mixture evenly in prepared pan.
For the cream cheese swirl, in a small bowl, beat together cream cheese, egg, sugar, and vanilla extract, until smooth. Spread the cream cheese mixture evenly over the pumpkin batter.
Dollop the remaining pumpkin batter over the cream cheese mixture and spread as evenly as possible. Use a tabe knife to swirl the two batters together.
Bake 30 to 35 minutes or until the center springs back when touched. Cool completely before cutting into bars and serving.