Take one of the colored gelatin bowl (preferably Red) and add 2 Tbsp of milk into it then warm in microwave for 10-15 seconds
Add 1/6 of the cream cheese mixture into this gelatin bowl, and mix well.
Pour this colored cream cheese mixture into the freezed chocolate crust from the center outward.
Repeat the above steps with other colors in order of: Red, Purple, Blue, Green, Yellow, and Orange. Just pour to layer the colored cream cheese onto the crust, do not shake or mix them.
Once done, tap the pan a few times to release small air bubbles.
Use a toothpick or marbler tool to create some line or decoration on the top most layer.
Cover and chill in refrigerator to set the cheese, preferably overnight before serving.