Add Oreo cookies to a food processor and pulse until fine crumbs form.
Transfer crumbs to a large bowl and mix with softened cream cheese until fully combined.
Roll the mixture into 1-inch balls and place on a baking sheet lined with parchment paper.
Freeze the balls for about 20 minutes until firm.
Dip each ball into melted chocolate, letting excess drip off, and place back on the sheet.
Immediately add sprinkles or crushed Oreos if desired. Let the chocolate set before serving.