Mix the brownie mix according to package directions.
Line the bottom of the Spring-form pan with parchment paper, and pour half, or a little more of the brownie batter into the Spring-form pan, on the parchment paper, and bake at 350 for 15 - 18 minutes, or until a toothpick inserted in the center comes out clean.
When done, remove from oven to a wire rack to cool. Place the remaining brownie batter into a small dish, and bake to eat while you're making the cheesecake filling!
In the mixing bowl of the stand mixer, with the whisk attachment, blend the 6 packages of cream cheese until smooth.
Add about a 1/4 cup of the 1 cup of heavy cream to the cream cheese, and mix until smooth. Scrape down the sides of the bowl with a spatula, and blend again.
Add the granulated sugar, vanilla, and lemon juice, and blend until smooth.
Add the corn starch to the powdered sugar, and add to the cream cheese mixture a little at a time, alternating with the cream, until all the cream and powdered sugar have been added. Scrape down the sides of the bowl again, and blend.
Turn the mixer on high, and mix for about 2 minutes, until the cheesecake filling is smooth and creamy.
Pour just a little less than half of the cheesecake filling into a small bowl, and place in the refrigerator, this is the white layer on top of the pink layer.
Add the Neon pink food coloring gel to the mixing bowl, a little at a time until the desired color of bright pink is achieved.
Blend until all the food coloring is incorporated into the cheesecake filling.
Pour the pink cheesecake filling on top of the brownie crust in the Spring-form pan, and place the pan in the freezer. Allow to freeze for at least 4 hours to set the cheesecake.
When the 4 hours is up, remove the cheesecake from the freezer, and remove the white layer from the refrigerator, and pour the white layer on top of the pink layer, and smooth the top with a spatula or spoon. Place the cheesecake back in the freezer.
Remove the wrappers from about half of the bags of both colors of mints. Place about half of the bag of red starlight mints into a double zip food bag and place half of the bag of the green mints into another bag.
Place the bag in another double zip bag, and with a wooden rolling pin, crush the mints into small pieces.
After the mints are crushed, decorated the cake with them.
Place the cheesecake back in the freezer for at least 4 hours, or overnight for best results. Serve within 24 hours for best results.