oop-doom.js

const monsters = {
  demons: {
    easy: [
      { name: "Imp", health: 60, damage: 20 },
      { name: "Zombie", health: 20, damage: 10 }
    ],
    medium: [
      { name: "Hell Knight", health: 500, damage: 45 },
      { name: "Cacodemon", health: 400, damage: 35 }
    ],
    hard: [
      { name: "Baron of Hell", health: 1000, damage: 60 },
      { name: "Cyberdemon", health: 4000, damage: 80 }
    ]
  },
  weapons: {
    basic: [
      { name: "Pistol", damage: 10 },
      { name: "Shotgun", damage: 30 }
    ],
    advanced: [
      { name: "Plasma Rifle", damage: 70 },
      { name: "BFG 9000", damage: 100 }
    ]
  }
};