Preheat the oven to 375°F (190°C) and line a large baking sheet with parchment paper.
Separate the 8 biscuits and flatten each piece into a circle approximately 4 inches in diameter.
Place 5 pepperoni slices and 1 cube of mozzarella cheese in the center of each dough circle.
Wrap the dough around the filling, pinching the edges firmly to seal, and roll into a ball shape.
Place the dough balls seam-side down on the prepared baking sheet, spaced 2 inches apart.
In a small bowl, combine the melted butter, garlic powder, and Italian seasoning.
Brush the garlic butter mixture over the top of each pizza bomb and sprinkle with grated Parmesan cheese.
Bake for 12 to 15 minutes or until the dough is golden brown and the cheese is melted.
Allow to cool for 5 minutes before serving with warm marinara sauce.