In some games, it takes an absurd amount of firepower to take down a basic enemy, whether due to monsters simply having massive amounts of Hit Points, weapons being PVP-Balanced, or a combination of both. Maybe its only when the game's difficulty is cranked up to "Make It Hurt!". Rats take multiple pistol rounds, Humanoid Aliens take repeated shotgun blasts to the face, and even with a rocket launcher there are still some guys that are going to go through a Death of a Thousand Cuts. This concept can apply to magic and melee weapons as well. Related to Kung Fu-Proof Mook.