In a large skillet, melt the butter over medium heat. Add the shrimp, garlic, paprika, 1/4 tsp. salt, a pinch black pepper and the cayenne. Cook, stirring, until the shrimp are cooked through, about 2 minutes. Remove from the heat.
Scoop the avocado flesh into a bowl; mash with a fork. Stir in the lemon juice, onion, hot sauce and 1 tsp. salt.
Place the tortilla chips on a platter in a single layer. Top each with 1 tsp. of the guacamole and 1 shrimp.