1. Line a baking sheet with parchment paper.
2. Spread out an even layer of Chex, Cheerios and pretzels sticks.
3. Place the chocolate in a microwave safe bowl and heat in the microwave at 15 second intervals. Stir in between until the chocolate becomes smooth.
4. Pour the chocolate over the cereal mixture.
5. Top with M&Ms, candy corn, marshmallows and candy eyes.
6. Mix together with a wooden spoon.
7. Place in the fridge until the chocolate hardens (about an hour).
8. Break into pieces to serve.