Line a baking sheet or large cutting board with parchment paper.
Place the Oreo cookies in a food processor and pulse until they are finely crushed.
In a large mixing bowl, combine the crushed Oreos and softened cream cheese until fully blended.
Roll the mixture into 1-inch balls and place them on the prepared baking sheet.
Freeze the truffles for 30 minutes, or until firm.
Melt the white almond bark in a microwave-safe bowl in 30-second intervals, stirring between each interval until smooth.
Using a fork or dipping tool, coat each truffle in the melted almond bark. Let the excess drip off, then return the coated truffles to the parchment-lined baking sheet.
Melt the red and blue candy melts in separate microwave-safe bowls, heating in 30-second intervals and stirring until smooth.
Drizzle the melted candy over the coated truffles.
Allow the coating to set completely before serving or storing. Store leftovers in an airtight container in the refrigerator.