Burning Spheres are magical projectiles launched at the player by Fire Imps. They have 1 HP and can be destroyed with any attack. Since they can pass through walls, they can hit the player wherever he or she stands and thus are very dangerous. Burning Spheres are similar to Chaos Balls thrown by Goblin Sorcerers, or Water Spheres launched by Dark Casters. Since they are launched only by Fire Imps, they are only found in The Underworld.