Line a large rimmed sheet pan with parchment paper and set aside.
Melt the chocolate in a microwave-safe bowl in 30-second increments, stirring after each time.
Pour the chocolate into the prepared pan and spread with a silicone spatula to about 1/4-inch thickness.
Sprinkle the popcorn, sprinkles, gummy worms and candy corn evenly over the chocolate.
Allow to harden (room temp for 2+ hours or 15 minutes in the refrigerator) then cut or break into pieces. Serve and enjoy!