Stir together graham cracker crumbs, 3/4 c. melted butter and 2 Tbsp. sugar in a large bowl. Press into a 9x13" baking dish that you've lined with parchment paper.
Bake the crust at 350 degrees Fahrenheit for 12 minutes. While the crust is baking, prepare the next layer by popping the Orville Redenbacher's popcorn, then melting the marshmallows (I did this in the microwave) and tossing the popcorn, along with 1/2 c. peanuts in the melted marshmallows until completely coated.
Butter your hands to prevent sticking and carefully press this popcorn mixture over the crust.
Melt 1 1/2 c. peanut butter chocolate chips and drizzle over the top. Immediately sprinkle with 1 c. colorful chocolate candies, 1/2 c. peanut butter chocolate chips, and 1/2 c. peanuts. Let the melted chocolate set, then slice and serve on plates as these are messy! Enjoy!